Through-wall type fresh air machine

Abstract

The utility model relates to the technical field of fresh air machines, and discloses a through-wall type fresh air machine. The through-wall type fresh air machine comprises a shell and a fan body, the shell comprises an indoor air opening and an outdoor air opening, an air channel communicating with the indoor air opening and the outdoor air opening is formed in the shell, and the indoor air opening comprises a first sub-indoor air opening and a second sub-indoor air opening; the air door assembly comprises an air door, the air door is arranged in the air duct, and the air door can move between a closing position for communicating the indoor air opening with the outdoor air opening and an opening position for separating the indoor air opening from the outdoor air opening; the fan assembly is arranged in the air duct and is arranged between the air door and the indoor air opening; the filtering device is arranged in the air duct and is arranged between the air door and the indoor air opening; when the air door is located at the closing position, the first sub-indoor air opening and the second sub-indoor air opening are separated. When the air door is located at the opening position, the first sub-indoor air opening communicates with the second sub-indoor air opening. In this way, indoor air can be purified in an internal circulation mode, and the indoor air quality is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fresh air machines, in particular to a wall-penetrating fresh air machine. BACKGROUND

[0002] At present, with the improvement of people's pursuit of life quality, people usually use fresh air machines to introduce outdoor fresh air into the room and exhaust indoor air to the outside, so as to realize the circulation of indoor and outdoor air and improve the indoor air quality. The existing wall type fresh air machine mostly adopts a reversible fan blowing mode, and realizes the function of bidirectional air exhaust through forward rotation or reverse rotation of the fan. The working efficiency of the reversible fan is lower than that of the one-way fan.

[0003] The related technology discloses a wall type double-channel fresh air machine, which divides the cavity inside the machine body into an air inlet channel and an air outlet channel by arranging a partition plate in the machine body, and installs two forward rotation fans with opposite installation directions in the two channels respectively, so as to realize the function of bidirectional air exhaust and improve the working efficiency.

[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 technology:

[0005] In the related technology, the fresh air machine realizes the improvement of indoor air quality through the exchange and circulation of indoor air and outdoor air. However, the outdoor air quality is unstable, which may cause the polluted outdoor gas to be discharged into the room, thereby causing the indoor air to deteriorate.

[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 of ordinary skill in the art. CONTENT OF THE INVENTION

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

[0008] The embodiments of the present disclosure provide a wall-penetrating fresh air machine to improve the indoor air quality.

[0009] According to the first aspect of the embodiment of the utility model, provide a kind of through-wall fresh air machine, comprising: shell, including indoor air port and outdoor air port, and the shell is internally structured with the air duct that is connected with indoor air port and outdoor air port, and indoor air port includes first sub indoor air port and second sub indoor air port;Damper assembly, including damper, and damper is located in air duct, and damper can move between the closed position that is connected with indoor air port and outdoor air port and the open position that is cut off indoor air port and outdoor air port;Fan assembly, located in air duct, and located between damper and indoor air port;Filter device, located in air duct, and located between damper and indoor air port;Wherein, when damper is located in closed position, first sub indoor air port and second sub indoor air port are cut off;When damper is located in open position, first sub indoor air port and second sub indoor air port are connected.

[0010] Optionally, the outdoor air port includes a first sub-outdoor air port and a second sub-outdoor air port, the fan assembly includes a first fan and a second fan, and the through-wall fresh air machine further includes: a partition plate assembly arranged in the air duct to divide the air duct into a first sub-air duct and a second sub-air duct, the first sub-air duct being connected with the first sub-indoor air port and the first sub-outdoor air port, and the second sub-air duct being connected with the second sub-indoor air port and the second sub-outdoor air port; wherein the first fan is arranged in the first sub-air duct and located between the damper and the first sub-indoor air port, and the second fan is arranged in the second sub-air duct and located between the damper and the second sub-indoor air port.

[0011] Optionally, the first fan and the second fan are reversible fans; or the first fan is an exhaust fan, and the second fan is a supply fan.

[0012] Optionally, the first fan is arranged in the first sub-air duct in an inclined manner; and / or the second fan is arranged in the second sub-air duct in an inclined manner.

[0013] Optionally, the damper assembly further includes: a rotating shaft in driving connection with the damper; and a driving member in driving connection with the rotating shaft, the driving member driving the rotating shaft to rotate so as to drive the damper to rotate between the closed position and the open position.

[0014] Optionally, the through-wall fresh air machine further includes: a heat exchange core arranged in the air duct; in the case where the air duct includes the first sub-air duct and the second sub-air duct, a portion of the heat exchange core is arranged in the first sub-air duct, and another portion of the heat exchange core is arranged in the second sub-air duct.

[0015] Optionally, the through-wall fresh air machine further includes: a first sensor arranged at the indoor air port and configured to detect an indoor air quality parameter; and a controller connected with the first sensor and the fan assembly and configured to control the fan assembly to be turned on or turned off according to the detection information of the first sensor.

[0016] Optionally, the through-wall fresh air machine further comprises a second sensor arranged at the outdoor air inlet and configured to detect an outdoor air quality parameter; the controller is connected with the second sensor and the air door assembly, and is configured to control the opening and closing of the air door according to the detection information of the second sensor.

[0017] Optionally, when the air duct comprises a first sub-air duct and a second sub-air duct, the first sub-air duct is configured to exhaust air, and the second sub-air duct is configured to supply air; the first sensor is arranged at the first indoor air inlet, and the second sensor is arranged at the second outdoor air inlet.

[0018] Optionally, when the air duct comprises a first sub-air duct and a second sub-air duct, the fan assembly comprises a first fan and a second fan, and the first fan and the second fan are reversible fans; the controller is configured to control the air door to move to the closed position and control the first fan and the second fan to be in the air supply state when the through-wall fresh air machine operates in the air supply mode; or, the controller is configured to control the air door to move to the closed position and control the first fan and the second fan to be in the air exhaust state when the through-wall fresh air machine operates in the air exhaust mode; or, the controller is configured to control the air door to move to the open position and control the first fan to be in the air exhaust state and the second fan to be in the air supply state when the through-wall fresh air machine operates in the indoor circulation mode; or, the through-wall fresh air machine further comprises a heat exchange core arranged in the air duct, a part of the heat exchange core is arranged in the first sub-air duct, and another part of the heat exchange core is arranged in the second sub-air duct; the controller is configured to control the air door to move to the closed position and control the first fan to be in the air exhaust state and the second fan to be in the air supply state when the through-wall fresh air machine operates in the heat exchange mode.

[0019] The through-wall fresh air machine provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] By moving the air door between the closed position and the open position, flexible switching between the outdoor air supply and exhaust mode and the indoor circulation mode can be achieved. When the outdoor air quality is poor, the air door moves to the open position, at this time, the air door separates the indoor air inlet from the outdoor air inlet, which can effectively prevent the outdoor polluted air from entering the indoor environment. The first indoor air inlet and the second indoor air inlet are connected, so that the indoor air can flow freely between the first indoor air inlet and the second indoor air inlet, thereby realizing the indoor circulation of the indoor air. The fan assembly and the filter device are both arranged in the air duct and between the air door and the indoor air inlet, which can ensure the smooth operation of the indoor circulation mode. The indoor air is driven by the fan assembly to enter the air duct and is filtered by the filter device, thereby realizing the purification and efficient circulation of the indoor air. The purified air is supplied into the indoor environment again, which can effectively improve the indoor air quality. At the same time, when the air door is in the closed position, the through-wall fresh air machine is in the outdoor air supply and exhaust mode, which can realize the normal outdoor air supply and exhaust functions.

[0021] The foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the application as defined by the claims and their equivalents. Identical reference numbers in the figures designate equivalent elements, and:

[0023] Figure 1 is a cross-sectional view of a wall-through fresh air machine provided by an embodiment of the present disclosure, wherein,

[0024] The air door is in an open position, and the arrow direction indicates the flow direction of the air flow;

[0025] Figure 2 is a cross-sectional view of another wall-through fresh air machine provided by an embodiment of the present disclosure, wherein the air door is in a closed position, the controller runs an internal circulation mode, and the arrow direction indicates the flow direction of the air flow;

[0026] Figure 3 is a cross-sectional view of another wall-through fresh air machine provided by an embodiment of the present disclosure, wherein the arrow direction indicates the flow direction of the air flow;

[0027] Figure 4 is a cross-sectional view of another wall-through fresh air machine provided by an embodiment of the present disclosure, wherein the arrow direction indicates the flow direction of the air flow;

[0028] Figure 5 is a structural view of a wall-through fresh air machine provided by an embodiment of the present disclosure;

[0029] Figure 6 is Figure 5 a cross-sectional view in the direction of A-A.

[0030] REFERENCE NUMERALS:

[0031] 10: housing; 11: indoor air inlet; 111: first sub-indoor air inlet; 112: second sub-indoor air inlet; 12: outdoor air inlet; 121: first sub-outdoor air inlet; 122: second sub-outdoor air inlet; 13: air duct; 131: first sub-air duct; 132: second sub-air duct;

[0032] 20: air door assembly; 21: air door; 22: rotating shaft; 23: driving member;

[0033] 30: fan assembly; 31: first fan; 32: second fan;

[0034] 40: filter device;

[0035] 50: partition assembly; 51: opening;

[0036] 60: heat exchange core;

[0037] 70: first sensor; 71: second sensor;

[0038] 80: indoor panel; 81: first hollow structure; 82: outdoor panel; 83: second hollow structure;

[0039] 90: outer cylinder. DETAILED DESCRIPTION

[0040] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the attached drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. 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.

[0041] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned 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 in order to describe the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0042] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like 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 embodiments of 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 attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0043] In addition, the terms "set", "connected", and "fixed" should be understood broadly. For example, "connected" can be fixed connection, detachable connection, or integral configuration; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection via an intermediate medium, or internal communication between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present disclosure according to the specific circumstances.

[0044] Unless otherwise specified, the term "plurality" means two or more.

[0045] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means A or B.

[0046] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0047] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0048] In combination Figures 1-6 As shown in the drawings, the embodiments of the present disclosure provide a through-wall fresh air machine, which comprises a shell 10, a damper assembly 20, a fan assembly 30, and a filtering device 40.

[0049] The shell 10 comprises an indoor air inlet 11 and an outdoor air inlet 12, and the shell 10 is internally structured with an air duct 13 communicating the indoor air inlet 11 and the outdoor air inlet 12. The indoor air inlet 11 comprises a first indoor air inlet sub 111 and a second indoor air inlet sub 112. The damper assembly 20 comprises a damper 21, which is arranged in the air duct 13 and can move between a closed position for communicating the indoor air inlet 11 and the outdoor air inlet 12 and an open position for isolating the indoor air inlet 11 and the outdoor air inlet 12. The fan assembly 30 is arranged in the air duct 13 and between the damper 21 and the indoor air inlet 11. The filtering device 40 is arranged in the air duct 13 and between the damper 21 and the indoor air inlet 11. When the damper 21 is in the closed position, the first indoor air inlet sub 111 and the second indoor air inlet sub 112 are isolated. When the damper 21 is in the open position, the first indoor air inlet sub 111 and the second indoor air inlet sub 112 are communicated.

[0050] The through-wall fresh air machine is provided with an outdoor air supply and exhaust mode. In combination Figure 2As shown, when the damper 21 is in the closed position, the internal circulation mode is off. There is a gap between the first sub-indoor air vent 111 and the second sub-indoor air vent 112, with the indoor air vent 11 connected to the outdoor air vent 12. Alternatively, the first sub-indoor air vent 111 can be connected to the outdoor air vent 12, the second sub-indoor air vent 112 can be connected to the outdoor air vent 12, or both the first sub-indoor air vent 111 and the second sub-indoor air vent 112 can be connected to the outdoor air vent 12. (Combined with...) Figures 2-4 As shown, indoor air flows into the air duct 13 through the indoor air vent 11 and is then discharged from the room through the outdoor air vent 12. Outdoor air flows into the air duct 13 through the outdoor air vent 12 and is then sent into the room through the indoor air vent 11, thus completing the exchange of indoor and outdoor air.

[0051] The through-wall fresh air system also features an internal recirculation mode. Combined with... Figure 1 As shown, when the damper 21 is in the open position, the internal circulation mode is activated. The first sub-indoor air vent 111 and the second sub-indoor air vent 112 are connected, while the indoor air vent 11 is isolated from the outdoor air vent 12. The airflow direction in internal circulation mode is as follows: Figure 1 As indicated by the middle arrow, indoor air is exhausted into duct 13 through the first sub-indoor air vent 111, filtered and purified by the filter device 40, and then returned to the room through the second sub-indoor air vent 112, completing the indoor air circulation. This way, indoor air circulation can be maintained without introducing outdoor air. Alternatively, indoor air can be exhausted into duct 13 through the second sub-indoor air vent 112 and then returned to the room through the first sub-indoor air vent 111. When outdoor air quality is poor, such as in smog, dust storms, or high humidity conditions, the internal circulation mode can be selected.

[0052] Both the outdoor supply / exhaust mode and the internal circulation mode require the use of the fan assembly 30 and the filter device 40. Both the fan assembly 30 and the filter device 40 are located within the air duct 13, between the damper 21 and the indoor air outlet 11, ensuring effective operation in both modes. The fan assembly 30 and the filter device 40 can be positioned between the damper 21 and the indoor air outlet 11, between the damper 21 and the first sub-indoor air outlet 111, between the damper 21 and the second sub-indoor air outlet 112, or both. The filter device 40 can be equipped with filter elements of different filtration levels as needed.

[0053] The wall-penetrating fresh air machine provided by the embodiment of the present disclosure can realize flexible switching between the outdoor air supply and exhaust mode and the indoor circulation mode by the movement of the air door 21 between the closed position and the open position. When the outdoor air quality is poor, the air door 21 is moved to the open position, at which time the air door 21 separates the indoor air inlet 11 from the outdoor air inlet 12, which can effectively prevent the outdoor polluted air from entering the indoor environment. The first indoor air inlet 111 and the second indoor air inlet 112 are connected, so that the indoor air can flow freely between the first indoor air inlet 111 and the second indoor air inlet 112, thereby realizing the indoor air circulation. The fan assembly 30 and the filter device 40 are both arranged in the air duct 13 and between the air door 21 and the indoor air inlet 11, which can ensure the smooth operation of the indoor circulation mode. The indoor air is driven by the fan assembly 30 to enter the air duct 13 and is filtered by the filter device 40, thereby realizing the purification and efficient circulation of the indoor air. The purified air is again supplied to the indoor environment, which can effectively improve the indoor air quality. At the same time, when the air door 21 is in the closed position, the wall-penetrating fresh air machine is in the outdoor air supply and exhaust mode, which can realize the normal outdoor air supply and exhaust functions.

[0054] Optionally, in combination with Figures 1-4 As shown, the outdoor air inlet 12 includes a first outdoor air inlet 121 and a second outdoor air inlet 122, the fan assembly 30 includes a first fan 31 and a second fan 32, and the wall-penetrating fresh air machine further includes a partition assembly 50 arranged in the air duct 13 to divide the air duct 13 into a first air duct 131 and a second air duct 132, the first air duct 131 being connected to the first indoor air inlet 111 and the first outdoor air inlet 121, and the second air duct 132 being connected to the second indoor air inlet 112 and the second outdoor air inlet 122; wherein the first fan 31 is arranged in the first air duct 131 and located between the air door 21 and the first indoor air inlet 111, and the second fan 32 is arranged in the second air duct 132 and located between the air door 21 and the second indoor air inlet 112.

[0055] The air duct 13 is divided into two sub-air ducts 131 and 132 by the partition assembly 50. The first sub-air duct 131 communicates the first sub-inlet 111 and the first sub-outlet 121, and the second sub-air duct 132 communicates the second sub-inlet 112 and the second sub-outlet 122. The first sub-air duct 131 and the second sub-air duct 132 can be used for air supply or air exhaust. The first fan 31 and the second fan 32 are arranged in the first sub-air duct 131 and the second sub-air duct 132 respectively, which realizes a more efficient bidirectional air exhaust function. The first fan 31 and the second fan 32 can work simultaneously and do not interfere with each other, which effectively improves the efficiency of air exchange. The first fan 31 is arranged in the first sub-air duct 131, and the first fan 31 is located between the damper 21 and the first sub-inlet 111, so that the first fan 31 can be used for indoor air circulation, or for outdoor air supply or air exhaust of the first sub-air duct 131. The second fan 32 is arranged in the second sub-air duct 132, and the second fan 32 is located between the damper 21 and the second sub-inlet 112, so that the second fan 32 can be used for indoor air circulation, or for outdoor air supply or air exhaust of the second sub-air duct 132. When the damper 21 is in the open position, the first sub-inlet 111 and the first sub-outlet 121, and the second sub-inlet 112 and the second sub-outlet 122 can be simultaneously cut off. For example, when air exhaust and air supply are performed simultaneously, the first fan 31 is used for air exhaust, which is responsible for exhausting indoor dirty air into the first sub-air duct 131, and the second fan 32 is used for air supply, which is responsible for introducing air into the second sub-air duct 132 and into the room. In this way, the indoor air circulation efficiency can be improved, thereby more effectively improving the indoor air quality. When the damper 21 is in the closed position, the first fan 31 is used for air exhaust, which is responsible for exhausting indoor dirty air to the outside, and the second fan 32 is used for air supply, which is responsible for introducing outdoor fresh air into the room. In this way, the indoor and outdoor air exchange efficiency can be improved, thereby more effectively improving the indoor air quality.

[0056] Optionally, the partition assembly 50 includes a plurality of partitions, and the plurality of partitions are arranged at intervals in the air duct 13.

[0057] The air duct 13 is provided with a fan assembly 30, a damper 21, a filter device 40 and other module components. By arranging a plurality of partitions at intervals, the plurality of partitions cooperate with each module component to divide the air duct 13 into the first sub-air duct 131 and the second sub-air duct 132. In this way, the arrangement of each module component in the air duct 13 can be avoided.

[0058] Optionally, the first fan 31 and the second fan 32 are reversible fans.

[0059] The first fan 31 and the second fan 32 are reversible fans, which can flexibly adjust the rotating direction of the fan as needed to realize the quick switching of air supply and air exhaust. The reversible fan has two modes of forward rotation and reverse rotation. When the reversible fan is in the forward rotation mode, it is in the air supply state. When the reversible fan is in the reverse rotation mode, it is in the air exhaust state. When it is needed to quickly exhaust indoor hot air or odor, the first fan 31 and the second fan 32 can be both set to the air exhaust state. In this way, the air exhaust volume can be increased, and the air exhaust efficiency can be improved. When the outdoor air quality is good, and it is needed to introduce a large amount of fresh air, the first fan 31 and the second fan 32 can be both set to the air supply state. In this way, the air supply volume can be increased, and the air supply efficiency can be improved. When the damper 21 is located at the open position, and the indoor circulation mode is run, the first fan 31 can be set to the air exhaust state, and the second fan 32 can be set to the air supply state. This flexible adjustment mode makes the fresh air machine better adapt to different use scenarios and needs.

[0060] Optionally, the first fan 31 is an air exhaust fan, and the second fan 32 is an air supply fan.

[0061] When the first fan 31 is directly set to the air exhaust fan, the first sub-air duct 131 is definitely an air exhaust duct 13, which is used to exhaust indoor dirty air to the air duct 13, and then the indoor dirty air is sent into the indoor or exhausted to the outdoor after being circulated indoors. When the second fan 32 is directly set to the air supply fan, the second sub-air duct 132 is definitely an air supply duct 13, which is used to send the filtered indoor circulation air flow or outdoor fresh air into the indoor.

[0062] Optionally, in combination with Figures 1-4 As shown in FIG. 1, the first fan 31 is obliquely arranged in the first sub-air duct 131.

[0063] The first fan 31 is obliquely arranged in the first sub-air duct 131, which can make full use of the space of the first sub-air duct 131. In this way, the air inlet area of the first fan 31 can be effectively increased, so that the air flow efficiency can be improved. When the first fan 31 is in the air exhaust state, the air exhaust efficiency can be improved. The partition plate assembly 50 is arranged between the first sub-air duct 131 and the second sub-air duct 132. The first fan 31 can be obliquely arranged towards the partition plate assembly 50 along the direction from the first indoor air inlet 111 to the first outdoor air outlet 121. The first fan 31 can also be obliquely arranged away from the partition plate assembly 50 along the direction from the first indoor air inlet 111 to the first outdoor air outlet 121.

[0064] Optionally, in combination with Figures 1-4 As shown in FIG. 1, the second fan 32 is obliquely arranged in the second sub-air duct 132.

[0065] The second fan 32 is obliquely arranged in the second sub-air duct 132, so that the space of the second sub-air duct 132 can be more fully utilized. In this way, the air inlet area of the second fan 32 can be effectively increased, so that the air flow efficiency is improved. When the second fan 32 is in the air supply state, the air supply efficiency can be improved. The second fan 32 can be obliquely arranged towards the partition assembly 50 along the direction from the second sub-room air inlet 112 to the second sub-room air outlet 122. The second fan 32 can also be obliquely arranged away from the partition assembly 50 along the direction from the second sub-room air inlet 112 to the second sub-room air outlet 122.

[0066] Optionally, in combination with Figures 1-4 As shown, the damper assembly 20 further comprises a rotating shaft 22 and a driving member 23. The rotating shaft 22 is in transmission connection with the damper 21. The driving member 23 is in driving connection with the rotating shaft 22. The driving member 23 drives the rotating shaft 22 to rotate so as to drive the damper 21 to rotate between the closed position and the open position.

[0067] The driving member 23 can accurately control the rotation of the rotating shaft 22, so as to drive the damper 21 to quickly and accurately switch between the closed position and the open position. The driving member 23 can be a stepping motor. The opening and closing of the damper 21 can be more accurately controlled through the stepping motor.

[0068] Optionally, the size of the damper 21 is matched with the air duct 13.

[0069] The size of the damper 21 is matched with the air duct 13, so that the air duct 13 can be completely closed and the damper 21 can smoothly move in the air duct 13. The damper 21 can be arranged in a fan shape, so that the damper 21 can be matched with the arc-shaped inner wall of the air duct 13, and the fan-shaped damper 21 can also improve the smoothness of the movement of the damper 21. It can be understood that the damper 21 can also be arranged in other shapes.

[0070] Optionally, in combination with Figures 1-4 As shown, the partition assembly 50 is provided with an opening 51, and the damper 21 is embedded in the opening 51 and can rotate relative to the opening 51.

[0071] By arranging the opening in the partition assembly 50 and embedding the damper 21 in the opening, the size of the damper 21 is matched with the opening. When the damper 21 is in the closed position, the opening can be effectively blocked, so that the air-tightness of the partition assembly 50 is guaranteed, the first sub-air duct 131 and the second sub-air duct 132 are completely isolated, and the air flow between the two sub-air ducts 13 is avoided. The damper 21 can smoothly rotate relative to the opening between the closed position and the open position. The size of the damper 21 is matched with the air duct 13. When the damper 21 is in the open position, the indoor air inlet 11 and the outdoor air outlet 12 can be effectively cut off, the independent indoor circulation of indoor air is realized, and the indoor air quality is improved.

[0072] Optionally, in combination with Figures 1-4As shown, the through-wall fresh air machine further comprises a heat exchange core 60, which is arranged in the air duct 13. In the case where the air duct 13 comprises a first sub-air duct 131 and a second sub-air duct 132, a part of the heat exchange core 60 is arranged in the first sub-air duct 131, and another part of the heat exchange core 60 is arranged in the second sub-air duct 132.

[0073] By arranging the heat exchange core 60 in the air duct 13, the heat exchange core 60 can recover the heat of the indoor and outdoor air during the exchange process. For example, in winter, when the warm indoor air is discharged outdoors, the heat exchange core 60 can recover the heat therein and transfer it to the fresh air entering the indoor, thereby reducing the loss of indoor heat. Similarly, in summer, the heat exchange core 60 can recover the cold of the indoor cold air and transfer it to the fresh air entering the indoor. The heat exchange core 60 can be arranged on the side of the air door 21 facing the indoor air outlet 11, or on the side of the air door 21 facing the outdoor air outlet 12. In the case where the air duct 13 comprises a first sub-air duct 131 and a second sub-air duct 132, a part of the heat exchange core 60 is arranged in the first sub-air duct 131, and another part of the heat exchange core 60 is arranged in the second sub-air duct 132, so that the heat during the air exhaust and air supply process can be effectively exchanged. In this way, not only the energy utilization efficiency is improved, but also the operation cost of the equipment is reduced to a certain extent, achieving the effect of energy saving and environmental protection.

[0074] Optionally, the heat exchange core 60 is a ceramic heat exchange core 60.

[0075] The ceramic heat exchange core 60 has high heat conduction, which can improve the heat exchange efficiency.

[0076] Optionally, in combination with Figures 1-4 and Figure 6 As shown, the through-wall fresh air machine further comprises a first sensor 70 and a controller. The first sensor 70 is arranged at the indoor air outlet 11 and is used to detect the indoor air quality parameter. The controller is connected with the first sensor 70 and the fan assembly 30, and is configured to control the opening and closing of the fan assembly 30 according to the detection information of the first sensor 70.

[0077] By setting the first sensor 70 and the controller, real-time monitoring of the indoor air quality parameters and automatic control of the fan assembly 30 switch are realized. The first sensor 70 can detect the indoor CO2 concentration, PM2.5 concentration, and air quality parameters such as temperature and humidity, and transmit the detection information to the controller in real time. The controller automatically adjusts the on-off state of the fan assembly 30 according to these detection information, so that the indoor air quality is always in good condition. When the first sensor 70 detects that the CO2 concentration and PM2.5 concentration of indoor air are high, the indoor air quality is poor, and the controller controls the fan assembly 30 to open, driving the indoor air to flow into the air duct 13. In the indoor circulation mode, the indoor air flows into the air duct 13 and is sent back to the indoor after being filtered and purified. In the outdoor exhaust mode, the indoor air flows into the air duct 13 and is discharged to the outdoor, and the outdoor fresh air is sent into the indoor. When the first sensor 70 detects that the CO2 concentration and PM2.5 concentration of indoor air are low, the indoor air quality is good, and the controller automatically closes the fan assembly 30, which can save energy.

[0078] Optionally, in combination with Figure 6 As shown, the wall-penetrating fresh air machine further comprises a second sensor 71, which is arranged at the outdoor air inlet 12 and is used for detecting outdoor air quality parameters; wherein the controller is connected with the second sensor 71 and the damper assembly 20, and the controller is configured to control the opening and closing of the damper 21 according to the detection information of the second sensor 71.

[0079] By setting the second sensor 71 and the controller, real-time monitoring of the outdoor air quality parameters and automatic control of the damper assembly 20 are realized. The second sensor 71 can detect the outdoor CO2 concentration, PM2.5 concentration, and air quality parameters such as temperature and humidity, and transmit the detection information to the controller in real time. The controller automatically adjusts the opening and closing state of the damper 21 according to these detection information, so as to prevent the polluted air from entering the indoor. For example, when the second sensor 71 detects that the CO2 concentration and PM2.5 concentration of outdoor air are high, the outdoor air quality is poor, and the controller controls the damper 21 to move to the open position, and the damper 21 separates the indoor air inlet 11 and the outdoor air inlet 12. In this way, the polluted air can be prevented from entering the indoor. When the second sensor 71 detects that the CO2 concentration and PM2.5 concentration of outdoor air are low, the outdoor air quality is good, and the controller controls the damper 21 to close, and the indoor air inlet 11 and the outdoor air inlet 12 are connected. In this way, fresh air can be introduced from the outdoor.

[0080] Optionally, in the case that the damper assembly 20 comprises a driving member 23, the controller is connected with the driving member 23 to control the driving member 23 to drive the damper 21 to move. In this way, the automation degree of the damper 21 movement can be improved.

[0081] Optionally, in combination with Figure 4 and Figure 6 As shown in the figure, in the case where the air duct 13 includes a first sub-air duct 131 and a second sub-air duct 132, the first sub-air duct 131 is used for exhaust air, and the second sub-air duct 132 is used for supply air. The first sensor 70 is arranged at the first sub-chamber indoor air inlet 111, and the second sensor 71 is arranged at the second sub-chamber outdoor air outlet 122.

[0082] The first sub-air duct 131 is used for exhausting air to the outside, and the first sensor 70 is arranged at the first sub-chamber indoor air inlet 111 to detect the indoor air quality parameter. The second sub-air duct 132 is used for supplying air to the indoor, and the second sensor 71 is arranged at the second sub-chamber outdoor air outlet 122 to detect the outdoor air quality parameter. In this way, the air quality in the indoor and outdoor can be detected in real time, the operating state can be automatically adjusted, and precise monitoring and control of the exhaust and supply air process can also be achieved. The controller can control the operating state of the first fan 31 and the second fan 32 according to the detection information of the first sensor 70 and the second sensor 71, respectively, to optimize the exhaust and supply air process. During the exhaust process, the controller can adjust the speed of the first fan 31 according to the detection information of the first sensor 70 to ensure that the indoor dirty air is quickly exhausted. During the supply air process, the controller can adjust the speed of the second fan 32 according to the detection information of the second sensor 71 to quickly introduce fresh outdoor air.

[0083] Optionally, in the case where the air duct 13 includes a first sub-air duct 131 and a second sub-air duct 132, the fan assembly 30 includes a first fan 31 and a second fan 32, and the first fan 31 and the second fan 32 are both reversible fans, the controller is configured to control the damper 21 to move to the closed position and control the first fan 31 and the second fan 32 to be in the supply air state when the through-wall fresh air machine operates in the supply air mode; or, the controller is configured to control the damper 21 to move to the closed position and control the first fan 31 and the second fan 32 to be in the exhaust air state when the through-wall fresh air machine operates in the exhaust air mode; or, the controller is configured to control the damper 21 to move to the open position and control the first fan 31 to be in the exhaust air state and control the second fan 32 to be in the supply air state when the through-wall fresh air machine operates in the internal circulation mode; or, the through-wall fresh air machine further includes a heat exchange core 60 arranged in the air duct 13, a part of the heat exchange core 60 is arranged in the first sub-air duct 131, and another part of the heat exchange core 60 is arranged in the second sub-air duct 132, and the controller is configured to control the damper 21 to move to the closed position and control the first fan 31 to be in the exhaust air state and control the second fan 32 to be in the supply air state when the through-wall fresh air machine operates in the heat exchange mode.

[0084] The operation modes of the through-wall fresh air machine provided by the embodiments of the present disclosure include a supply air mode, an exhaust air mode, an internal circulation mode and a heat exchange mode. The supply air mode and the exhaust air mode belong to outdoor supply and exhaust air modes. The controller operates different modes according to the indoor air quality parameter detected by the first sensor 70 and the outdoor air quality parameter detected by the second sensor 71.

[0085] In combination with Figure 3 As shown in the supply air mode, the controller controls the damper 21 to move to the closed position, and controls the first fan 31 and the second fan 32 to be in the supply air state. The first sub-indoor air outlet 111 can be communicated with the first sub-outdoor air inlet 121, and the second sub-indoor air outlet 112 can be communicated with the second sub-outdoor air inlet 122. The flow direction of the airflow is shown by arrows in Figure 3 The first sub-air duct 131 and the second sub-air duct 132 simultaneously supply air to the indoor air, so that the outdoor fresh air can be quickly introduced into the indoor air, thereby improving the supply air efficiency.

[0086] In combination with Figure 2 As shown in the exhaust air mode, the controller controls the damper 21 to move to the closed position, and controls the first fan 31 and the second fan 32 to be in the exhaust air state. The first sub-indoor air outlet 111 can be communicated with the first sub-outdoor air inlet 121, and the second sub-indoor air outlet 112 can be communicated with the second sub-outdoor air inlet 122. The flow direction of the airflow is shown by arrows in Figure 2 The first sub-air duct 131 and the second sub-air duct 132 simultaneously supply air to the outdoor air, so that the indoor dirty air can be quickly exhausted, thereby improving the exhaust air efficiency.

[0087] In combination with Figure 1 As shown in the internal circulation mode, the controller controls the damper 21 to move to the open position, and controls the first fan 31 to be in the exhaust air state and controls the second fan 32 to be in the supply air state. The first sub-indoor air outlet 111 is cut off from the first sub-outdoor air inlet 121, and the second sub-indoor air outlet 112 is cut off from the second sub-outdoor air inlet 122. The filter device 40 is arranged in the first sub-air duct 131 and / or the second sub-air duct 132. Under the driving action of the first fan 31, the indoor air enters the first sub-air duct 131 through the first sub-indoor air outlet 111. Under the driving action of the second fan 32, the airflow in the air duct 13 flows to the second sub-air duct 132 and is supplied into the indoor air through the second sub-indoor air outlet 112. The flow direction of the airflow is shown by arrows in Figure 1 In this way, the indoor air can be quickly circulated. After the indoor air is filtered and purified by the filter device 40 in the air duct 13, the air quality can be improved.

[0088] In combination with Figure 4As shown, in the heat exchange mode, the controller controls the damper 21 to move to the closed position, and controls the first fan 31 to be in the exhaust state, and controls the second fan 32 to be in the supply state. The flow direction of the air flow is shown by the arrow direction. Part of the heat exchange core 60 is arranged in the first sub-air duct 131, and another part of the heat exchange core 60 is arranged in the second sub-air duct 132, so that heat recovery can be achieved through the heat exchange core 60 during the supply and exhaust processes, and the energy utilization efficiency is improved. Figure 4 As shown, in the heat exchange mode, the controller controls the damper 21 to move to the closed position, and controls the first fan 31 to be in the exhaust state, and controls the second fan 32 to be in the supply state. The flow direction of the air flow is shown by the arrow direction. Part of the heat exchange core 60 is arranged in the first sub-air duct 131, and another part of the heat exchange core 60 is arranged in the second sub-air duct 132, so that heat recovery can be achieved through the heat exchange core 60 during the supply and exhaust processes, and the energy utilization efficiency is improved.

[0089] Through the setting of multiple operation modes, the fresh air machine can flexibly adjust the operation state according to different use scenes and needs, not only improving the versatility and practicality of the fresh air machine, but also achieving efficient and energy-saving operation effect in different modes.

[0090] Optionally, in combination with Figures 1-6 As shown, the through-wall fresh air machine further comprises an indoor panel 80, the indoor panel 80 is arranged at the indoor air inlet 11, and the indoor panel 80 is provided with a first hollow structure 81 for air inlet and outlet.

[0091] Through the setting of the indoor panel 80, the appearance of the fresh air machine can be improved, and the air inlet and outlet are realized through the first hollow structure 81, so that the exhaust or supply of the fresh air machine can be avoided.

[0092] Optionally, in combination with Figures 1-6 As shown, the through-wall fresh air machine further comprises an outdoor panel 82, the outdoor panel 82 is arranged at the outdoor air inlet 12, and the outdoor panel 82 is provided with a second hollow structure 83 for air inlet and outlet.

[0093] Through the setting of the outdoor panel 82, the appearance of the fresh air machine can be improved, and the air inlet and outlet are realized through the second hollow structure 83, so that the exhaust or supply of the fresh air machine can be avoided.

[0094] Optionally, the second hollow structure 83 is arranged on the side or below the outdoor panel 82. In this way, outdoor debris can be prevented from entering the outdoor air inlet 12.

[0095] Optionally, in combination with Figures 1-6 As shown, the through-wall fresh air machine further comprises an outdoor panel 82, the outdoor panel 82 is arranged at the outdoor air inlet 12, and the outdoor panel 82 is provided with a second hollow structure 83 for air inlet and outlet.

[0096] Through the setting of the outdoor panel 82, the appearance of the fresh air machine can be improved, and the air inlet and outlet are realized through the second hollow structure 83, so that the exhaust or supply of the fresh air machine can be avoided.

[0097] 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. A through-wall fresh air system, characterized in that, include: The housing includes an indoor air vent and an outdoor air vent. The housing has an internal structure with an air duct connecting the indoor air vent and the outdoor air vent. The indoor air vent includes a first sub-indoor air vent and a second sub-indoor air vent. A damper assembly includes a damper, which is disposed in an air duct and is movable between a closed position connecting an indoor air vent and an outdoor air vent and an open position separating the indoor air vent from the outdoor air vent. The fan assembly is located inside the air duct and between the air damper and the indoor air outlet; The filter device is located inside the air duct and between the air damper and the indoor air vent. When the damper is in the closed position, the air vents in the first and second sub-rooms are separated; when the damper is in the open position, the air vents in the first and second sub-rooms are connected.

2. The through-wall fresh air system according to claim 1, characterized in that, The outdoor air vents include a first sub-outdoor air vent and a second sub-outdoor air vent; the fan assembly includes a first fan and a second fan; and the through-wall fresh air unit also includes: A partition assembly is provided in the air duct to divide the air duct into a first sub-air duct and a second sub-air duct. The first sub-air duct connects a first sub-indoor air outlet and a first sub-outdoor air outlet, and the second sub-air duct connects a second sub-indoor air outlet and a second sub-outdoor air outlet. The first fan is located in the first sub-duct and between the damper and the air vent in the first sub-room. The second fan is located in the second sub-duct and between the damper and the air vent in the second sub-room.

3. The through-wall fresh air unit according to claim 2, characterized in that, Both the first and second fans are reversible fans; or, The first fan is an exhaust fan, and the second fan is an exhaust fan.

4. The through-wall fresh air system according to claim 2, characterized in that, The first fan is inclinedly positioned within the first sub-duct; and / or, The second fan is installed at an angle inside the second sub-duct.

5. The through-wall fresh air unit according to claim 1, characterized in that, The damper assembly also includes: The rotating shaft is connected to the damper drive. The driving component is connected to the rotating shaft and drives the rotating shaft to rotate, thereby causing the damper to rotate between the closed and open positions.

6. The through-wall fresh air unit according to any one of claims 1 to 5, characterized in that, Also includes: The heat exchange core is located in the air duct; In the case where the air duct includes a first sub-air duct and a second sub-air duct, a portion of the heat exchange core is located in the first sub-air duct, and another portion of the heat exchange core is located in the second sub-air duct.

7. The through-wall fresh air unit according to any one of claims 1 to 5, characterized in that, Also includes: The first sensor is located at the indoor air vent and is used to detect indoor air quality parameters; The controller, connected to both the first sensor and the fan assembly, is configured to control the switching on and off of the fan assembly based on detection information from the first sensor.

8. The through-wall fresh air unit according to claim 7, characterized in that, Also includes: The second sensor is located at the outdoor vent and is used to detect outdoor air quality parameters. The controller is connected to both the second sensor and the damper assembly, and is configured to control the opening and closing of the damper based on the detection information from the second sensor.

9. The through-wall fresh air unit according to claim 8, characterized in that, In the case where the air duct includes a first sub-air duct and a second sub-air duct, the first sub-air duct is used for exhaust air, the second sub-air duct is used for supply air, the first sensor is located at the indoor air outlet of the first sub-air duct, and the second sensor is located at the outdoor air outlet of the second sub-air duct.

10. The through-wall fresh air system according to claim 8, characterized in that, In the case where the air duct includes a first sub-air duct and a second sub-air duct, the fan assembly includes a first fan and a second fan, and both the first fan and the second fan are reversible fans, The controller is configured to control the damper to move to the closed position and control both the first and second fans to be in the air supply state when the through-wall fresh air unit is in air supply mode. or, The controller is configured to control the damper to move to the closed position and control both the first and second fans to be in exhaust mode when the through-wall fresh air unit is in exhaust mode. or, The controller is configured to, when the through-wall fresh air unit is operating in recirculation mode, control the damper to move to the open position, control the first fan to be in exhaust mode, and control the second fan to be in supply mode; or, The through-wall fresh air unit also includes a heat exchange core located in the air duct. A part of the heat exchange core is located in the first sub-air duct, and another part of the heat exchange core is located in the second sub-air duct. The controller is configured to control the damper to move to the closed position, control the first fan to be in exhaust mode, and control the second fan to be in supply mode when the through-wall fresh air unit is running in heat exchange mode.

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