Fresh air module and air conditioning device

Abstract

The utility model relates to a kind of fresh air module and air conditioning equipment, the fresh air module includes casing, fan and air pipe, the casing is equipped with first air port, the fan is located in the casing, the fan is equipped with air inlet and air outlet passage, the air pipe is connected with the casing, the air pipe is equipped with second air port The fresh air module is switchable between exhaust mode and fresh air mode, in the exhaust mode, the first air port air inlet, the first air port is communicated with the air inlet, the air outlet passage is communicated with the second air port, the second air port air outlet in the fresh air mode, the second air port air inlet, the second air port is communicated with the air inlet, the air outlet passage is communicated with the first air port, the first air port air outlet.The indoor air outlet and indoor air inlet of the fresh air module of the utility model can share an air port, structure design is simple, and it is favorable to improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a fresh air module and an air conditioning device. Background Technology

[0002] Most existing ducted air conditioning units and other air conditioning equipment are equipped with fresh air modules to bring fresh outdoor air into the room. In related technologies, to meet different user application scenarios, the outer casing of the fresh air module is usually equipped with indoor air inlets and indoor air outlets to achieve the dual functions of indoor air supply and exhaust. However, the above-mentioned fresh air modules have a large number of openings, complex structural designs, and a poor user experience. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a fresh air module in which the indoor air outlet and indoor air intake can share a single air vent, resulting in a simple structural design that improves the user experience.

[0005] An embodiment of this utility model also proposes an air conditioning device.

[0006] The fresh air module of this utility model includes: a housing with a first air vent; a fan disposed inside the housing, the fan having an air inlet and an air outlet; and a duct connected to the housing, the duct having a second air vent. The fresh air module can switch between an exhaust mode and a fresh air mode. In the exhaust mode, air enters through the first air vent, the first air vent is connected to the air inlet, the air outlet is connected to the second air vent, and air exits through the second air vent. In the fresh air mode, air enters through the second air vent, the second air vent is connected to the air inlet, the air outlet is connected to the first air vent, and air exits through the first air vent.

[0007] According to the embodiments of the present invention, the fresh air module has a first air inlet for air intake and a second air outlet for air exhaust in exhaust mode, and a second air outlet for air intake and a first air outlet for air exhaust in fresh air mode. This allows the fresh air module to share a single first air outlet in both exhaust and fresh air modes. The first air outlet can intake and exhaust air in different modes, eliminating the need for numerous air outlets on the casing, thus simplifying the casing's appearance and improving the user experience.

[0008] In some embodiments, the housing is provided with an exhaust duct. In the exhaust mode, a first end of the exhaust duct is connected to the air outlet duct, and a second end of the exhaust duct is connected to the second air vent. In the fresh air mode, at least one of the air outlet duct and the second air vent is disconnected from the exhaust duct. The fresh air module of this embodiment, by providing an exhaust duct, can more smoothly guide the airflow from the fan to the second air vent in the exhaust mode. Furthermore, the fresh air module can switch between the first and second air vents by controlling the opening and closing of the exhaust duct, facilitating airflow control of the fresh air module and simplifying the component layout within the housing.

[0009] In some embodiments, the fresh air module includes a first damper and a second damper. The first damper is movably connected to the air outlet duct, and the second damper is movably connected to the exhaust duct. In the exhaust mode, the first damper and the second damper cooperate to connect the air outlet duct and the exhaust duct. In the fresh air mode, the first damper and the second damper are spaced apart to form a transition duct. The air outlet duct connects to the first air vent through the transition duct, and the second damper blocks the connection between the air outlet duct and the exhaust duct. Thus, the first damper and the second damper cooperate to simplify the opening and closing process of the exhaust duct and facilitate manufacturing.

[0010] In some embodiments, the fresh air module includes a first driving component and a second driving component. The first driving component is connected to the first damper and is used to drive the first damper to rotate relative to the air outlet duct. The second driving component is connected to the second damper and is used to drive the second damper to rotate relative to the exhaust duct. The first and second dampers are automatically controlled by a driving structure to improve the convenience of switching between different modes of the fresh air module. In addition, since the first driving component drives the first damper to rotate and the second driving component drives the second damper to rotate, the operation process of the first and second dampers is simple, the required installation space is small, and the manufacturing process is convenient.

[0011] In some embodiments, during the exhaust mode, the projection surface of the first damper and the projection surface of the second damper at least partially overlap on a projection orthogonal to the thickness direction of the first damper. Because the first damper and the second damper at least partially overlap in the exhaust mode, the sealing effect of the first damper and the second damper can be improved, reducing the probability of air leakage at the mating point of the first damper and the second damper.

[0012] In some embodiments, a first stop block is provided inside the housing. The first stop block is arranged near the edge of the first air vent, and in the fresh air mode, the first air damper abuts against the first stop block. The first stop block can limit the movement of the first air damper to ensure that the first air damper can move to the accurate position in the fresh air mode, thereby improving the accuracy of the movement of the first air damper.

[0013] In some embodiments, a second stop block is provided inside the housing. In the exhaust mode, the second damper abuts against the second stop block, and the first damper abuts against the second damper. The second stop block can limit the movement of the second damper to ensure that the second damper can move to an accurate position in the exhaust mode, thereby improving the accuracy of the second damper's movement.

[0014] In some embodiments, the outer wall of the fan and the inner wall of the housing define an air guide cavity. In the exhaust mode, the first air outlet communicates with the air inlet through the air guide cavity; in the fresh air mode, the second air outlet communicates with the air inlet through the air guide cavity. The fresh air module of this embodiment uses the fan and housing structure to form an air guide cavity, which simplifies the internal structure of the fresh air module and facilitates switching between different modes, resulting in better performance.

[0015] In some embodiments, the fresh air module includes a third damper, which is movably installed inside the duct. The duct has a first port and a second port, both of which mate with the housing. In exhaust mode, the third damper cuts off the connection between the second air outlet and the first port, and the second air outlet communicates with the air outlet channel through the second port. In fresh air mode, the third damper cuts off the connection between the second air outlet and the second port, and the second air outlet communicates with the air guide cavity through the first port. By placing the third damper inside the duct, the fresh air module of this embodiment reduces the number of components inside the housing compared to placing the third damper inside the housing, thus facilitating the arrangement of components within the housing.

[0016] In some embodiments, the fresh air module includes a third drive component connected to the third damper for driving the third damper to rotate relative to the duct. The third damper is automatically controlled by the third drive component to improve the ease of switching between different modes of the fresh air module. Furthermore, since the third drive component drives the third damper to rotate, the operation of the third damper is simple, requires less installation space, and is easy to manufacture.

[0017] In some embodiments, the first port and the second port are located on the same side of the housing. This allows for optimized design of the airflow within the housing and ductwork, facilitating assembly of the ductwork and housing, and resulting in a compact structure that reduces the space occupied by the fresh air module.

[0018] In some embodiments, the duct has a first inlet. In the fresh air mode, the second air outlet communicates with the air guide cavity through the first inlet. The fresh air module includes a filter assembly, which is disposed within at least one of the housing and the duct, and is arranged opposite to the first inlet. In the fresh air mode, the air entering the housing through the second air outlet can be filtered by the filter assembly to ensure the cleanliness of the indoor air.

[0019] In some embodiments, the filter assembly includes a filter bracket and a filter element. The filter bracket is disposed within the air guide cavity, and the filter element is detachably connected to the filter bracket. On the projection of an axis orthogonal to the first pipe opening, the outer periphery of the first pipe opening is located within the outer periphery of the filter element, or the outer periphery of the first pipe opening coincides with the outer periphery of the filter element. Because the filter bracket is disposed within the air guide cavity of the housing, and the filter element is detachably connected to the filter bracket, after the fresh air module has been operating for a period of time, the user can open the housing and remove the filter element from the filter bracket for easy removal and replacement, improving user convenience.

[0020] In some embodiments, the housing includes a shell and a cover plate. The lower side of the shell has an opening, and the cover plate seals the opening and is detachably connected to the shell. When it is necessary to inspect or replace the filter element inside the housing, the cover plate can be removed from the shell to open the opening, thereby facilitating the inspection or replacement of the filter element and providing good practical results.

[0021] In some embodiments, the fan includes a rotor and a volute. The rotor is disposed within the volute, and the air inlet communicates with and is arranged opposite to the rotor. The rotor and the inner wall of the volute define the air outlet channel. When the rotor rotates, airflow can be introduced from the air inlet to the air outlet channel, thereby achieving airflow transmission and providing a good airflow guiding effect.

[0022] Another embodiment of the air conditioning device of the present invention includes the fresh air module described in any one of the embodiments of the present invention.

[0023] According to the air conditioning device of this utility model embodiment, in exhaust mode, the fresh air module has air intake through the first air vent and air exhaust through the second air vent; in fresh air mode, the fresh air module has air intake through the second air vent and air exhaust through the first air vent. This allows the fresh air module to share a single first air vent in both exhaust and fresh air modes. That is, the first air vent can intake and exhaust air in different modes, thus eliminating the need for numerous air vents on the casing, simplifying the casing's appearance, and resulting in a simpler structural design that improves the user experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the fresh air module (in exhaust mode) of this utility model with the cover plate removed.

[0025] Figure 2 This is a perspective view of the fresh air module (in exhaust mode) of this utility model embodiment with the cover plate removed.

[0026] Figure 3 This is a cross-sectional view of the fresh air module (in exhaust mode) according to an embodiment of this utility model.

[0027] Figure 4 This is a longitudinal cross-sectional view of the fresh air module (in exhaust mode) according to an embodiment of this utility model.

[0028] Figure 5 This is a perspective view of the fresh air module (in fresh air mode) according to an embodiment of this utility model.

[0029] Figure 6 This is a cross-sectional view of the fresh air module (in fresh air mode) according to an embodiment of the present invention.

[0030] Figure 7 This is a longitudinal cross-sectional view of the fresh air module (in fresh air mode) according to an embodiment of this utility model.

[0031] Figure 8 This is an exploded view of the filter component of the fresh air module according to an embodiment of this utility model.

[0032] Figure label:

[0033] 1. Housing; 11. Shell; 111. First air vent; 112. Opening; 12. Cover plate; 13. Exhaust duct; 14. Air guide cavity; 15. First stop block; 16. Second stop block;

[0034] 2. Fan; 21. Volute; 211. Air inlet; 212. Air outlet duct; 22. Impeller; 23. Impeller motor; 24. Adapter duct; 25. Guide ring;

[0035] 3. Air duct; 31. Second air outlet; 32. First duct opening; 33. Second duct opening;

[0036] 41. First air damper; 42. Second air damper; 43. Third air damper;

[0037] 5. Filter assembly; 51. Filter bracket; 511. Mounting cavity; 52. Filter element. Detailed Implementation

[0038] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] The following is a reference appendix. Figures 1 to 8 This invention describes a fresh air module and an air conditioning device according to embodiments of the present invention.

[0040] like Figures 1 to 7 As shown, the fresh air module of this utility model embodiment includes: a housing 1, a fan 2, and an air duct 3. The housing 1 is provided with a first air outlet 111, the fan 2 is located inside the housing 1, the fan 2 is provided with an air inlet 211 and an air outlet 212, the air duct 3 is connected to the housing 1, and the air duct 3 is provided with a second air outlet 31. The fresh air module can switch between exhaust mode and fresh air mode.

[0041] like Figure 2 and Figure 3 As shown, in exhaust mode, the first air inlet 111 receives air and is connected to the air inlet 211. The air outlet 212 is connected to the second air outlet 31, and the second air outlet 31 discharges air.

[0042] like Figure 6 and Figure 7 As shown, in fresh air mode, air enters through the second air inlet 31, which is connected to the air inlet 211. The air outlet duct 212 is connected to the first air outlet 111, which then exits air.

[0043] According to the embodiments of the present invention, in the fresh air module, in exhaust mode, the first air vent 111 intakes air and the second air vent 31 exhausts air; in fresh air mode, the second air vent 31 intakes air and the first air vent 111 exhausts air. This allows the fresh air module to share a single first air vent 111 in both exhaust and fresh air modes. That is, the first air vent 111 can intake and exhaust air in different modes, thus eliminating the need for numerous air vents on the casing 1, simplifying its appearance, and resulting in a simpler structural design that improves the user experience.

[0044] Compared to the previous solution where "the fresh air module has indoor fresh air inlets and indoor return air inlets, which are opened separately in different modes," the fresh air module of this embodiment can intake and exhaust air through a single air inlet (first air inlet 111) in different modes. This eliminates the need to set up a return air inlet on the casing 1. On the one hand, it simplifies the structure of the fresh air module and optimizes the layout of components. On the other hand, during the actual installation of the fresh air module, there is no need to reserve a return air inlet, making the installed fresh air module more aesthetically pleasing and improving the user experience.

[0045] Optionally, such as Figure 3 and Figure 6 As shown, the housing 1 is provided with an exhaust duct 13. In exhaust mode, the first end of the exhaust duct 13 is connected to the air outlet 212, and the second end of the exhaust duct 13 is connected to the second air vent 31. In fresh air mode, at least one of the air outlet 212 and the second air vent 31 is disconnected from the exhaust duct 13. By providing the exhaust duct 13, the fresh air module of this embodiment can more smoothly guide the airflow from the fan 2 to the second air vent 31 in exhaust mode. Furthermore, the fresh air module can switch between the first air vent 111 and the second air vent 31 by controlling the opening and closing of the exhaust duct 13, facilitating the airflow control of the fresh air module and simplifying the component layout within the housing 1.

[0046] It is understandable that, such as Figure 3 As shown, in exhaust mode, exhaust duct 13 is in a conductive state, that is, the first end of exhaust duct 13 is connected to air outlet duct 212, and the second end of exhaust duct 13 is connected to second air vent 31. Thus, the first air vent 111 can introduce indoor air into the air inlet 211 of the fan 2, and then under the action of the fan 2, the airflow can be introduced into the air outlet duct 212; the air discharged from the air outlet duct 212 can enter the exhaust duct 13, and then be transmitted to the second air vent 31 through the exhaust duct 13, thereby realizing the function of air intake at the first air vent 111 and air exhaust at the second air vent 31.

[0047] like Figure 6 As shown, in fresh air mode, exhaust duct 13 is in a closed (shutdown) state. For example, the first end of exhaust duct 13 is closed to the air outlet duct 212. Another example is that the second end of exhaust duct 13 is closed to the second air vent 31. Thus, the second air vent 31 can introduce air into the air inlet 211 of the fan 2, and then, under the action of the fan 2, the airflow can be introduced into the air outlet duct 212. Because exhaust duct 13 is in a closed (shutdown) state, the air discharged from the air outlet duct 212 can be directly discharged through the first air vent 111, thereby realizing the function of air intake through the second air vent 31 and air exhaust through the first air vent 111.

[0048] Optionally, the outer wall of the fan 2 and the inner wall of the casing 1 define an air guide cavity 14, such as... Figure 2 and Figure 3 As shown, in exhaust mode, the first air vent 111 is connected to the air inlet 211 through the air guide cavity 14. Figure 6 and Figure 7 As shown, in the fresh air mode, the second air vent 31 is connected to the air inlet 211 through the air guide cavity 14. It can be understood that the fresh air module of this embodiment of the present invention forms the air guide cavity 14 by the self-structure of the fan 2 and the housing 1, which simplifies the internal structure of the fresh air module and facilitates the switching between different modes, resulting in better performance.

[0049] Optionally, such as Figure 3 and Figure 6 As shown, the fresh air module includes a first air damper 41 and a second air damper 42. The first air damper 41 is movably connected to the air outlet duct 212, and the second air damper 42 is movably connected to the exhaust duct 13. That is, the first air damper 41 is movable relative to the air outlet duct 212, and the second air damper 42 is movable relative to the exhaust duct 13.

[0050] like Figure 3 As shown, in exhaust mode, the first damper 41 and the second damper 42 cooperate to connect the outlet duct 212 and the exhaust duct 13. Figure 6 As shown, in the fresh air mode, the first damper 41 and the second damper 42 are spaced apart and form a transition duct 24. The air outlet duct 212 is connected to the first air outlet 111 through the transition duct 24, and the second damper 42 cuts off the connection between the air outlet duct 212 and the exhaust duct 13. It can be understood that the first damper 41 and the second damper 42 work together to simplify the opening and closing process of the exhaust duct 13 and facilitate its manufacturing.

[0051] It is understandable that, such as Figure 3 As shown, in exhaust mode, under the blocking action of the first damper 41 and the second damper 42, the first damper 41 and the second damper 42 can cut off the gap between the first air outlet 111 and the air outlet 212. Therefore, the airflow of the first air outlet 111 can enter the air guide cavity 14. The impeller 22 in the fan 2 rotates to draw indoor air into the air inlet 211, and then exhaust it to the outside through the air outlet 212, the exhaust duct 13 and the second air outlet 31, thereby realizing indoor exhaust.

[0052] like Figure 6As shown, in the fresh air mode, the first damper 41 can cut off the connection between the first air outlet 111 and the air guide cavity 14, and the second damper 42 can cut off the connection between the air outlet 212 and the exhaust duct 13. A transition channel can be formed between the first damper 41 and the second damper 42. Thus, the airflow entering the air guide cavity 14 through the second air outlet 31 can be introduced into the air outlet 212 through the air inlet 211. Since the air outlet 212 is cut off from the exhaust duct 13 and the air guide cavity 14, the airflow discharged from the air outlet 212 can enter the room through the transition channel and the first air outlet 111 to realize the function of introducing fresh air into the room.

[0053] like Figure 3 and Figure 6 As shown, the fresh air module includes a first drive component (not shown) and a second drive component (not shown). For example, both the first and second drive components can be motors. The first drive component is connected to the first damper 41 and is used to drive the first damper 41 to rotate relative to the air outlet duct 212. The second drive component is connected to the second damper 42 and is used to drive the second damper 42 to rotate relative to the exhaust duct 13. It can be understood that the first damper 41 and the second damper 42 adopt a drive structure for automatic control to improve the convenience of switching between different modes of the fresh air module. In addition, since the first drive component drives the first damper 41 to rotate and the second drive component drives the second damper 42 to rotate, the operation process of the first damper 41 and the second damper 42 is simple, the required installation space is small, and the processing and manufacturing are convenient.

[0054] like Figure 3 As shown, the pivot of the first damper 41 is located on the side of the air outlet 212 near the first air vent 111, and the pivot of the second damper 42 is located on the side of the exhaust duct 13 near the first air vent 111.

[0055] Optionally, such as Figure 3 As shown, in exhaust mode, and along a projection orthogonal to the thickness direction of the first damper 41, the projection surface of the first damper 41 at least partially overlaps with the projection surface of the second damper 42. It can be understood that the at least partial overlap of the first damper 41 and the second damper 42 in exhaust mode improves the sealing effect of the first damper 41 and the second damper 42, reducing the probability of air leakage at the mating point of the first damper 41 and the second damper 42.

[0056] Optionally, such as Figure 3 and Figure 6 As shown, a first stop block 15 is provided inside the housing 1. The first stop block 15 is arranged near the edge of the first air outlet 111. In fresh air mode, the first air damper 41 abuts against the first stop block 15. The first stop block 15 can limit the first air damper 41 to ensure that the first air damper 41 can move to the accurate position in fresh air mode, thereby improving the accuracy of the movement of the first air damper 41.

[0057] like Figure 3 and Figure 6 As shown, a second stop block 16 is provided inside the housing 1. In the exhaust mode, the second air damper 42 abuts against the second stop block 16, and the first air damper 41 abuts against the second air damper 42. The second stop block 16 can limit the second air damper 42 to ensure that the second air damper 42 can move to the accurate position in the exhaust mode, thereby improving the accuracy of the movement of the second air damper 42. In addition, since the second air damper 42 abuts against the first air damper 41, the first air damper 41 can limit the second air damper 42, thereby ensuring the accuracy of the movement of the first air damper 41 and the second air damper 42 in the exhaust mode.

[0058] In some embodiments, such as Figure 3 and Figure 6 As shown, the fresh air module includes a third damper 43, which is movably installed inside the duct 3. The duct 3 has a first port 32 and a second port 33, both of which cooperate with the housing 1. In exhaust mode, the third damper 43 cuts off the connection between the second air outlet 31 and the first port 32, and the second air outlet 31 is connected to the air outlet channel 212 through the second port 33. In fresh air mode, the third damper 43 cuts off the connection between the second air outlet 31 and the second port 33, and the second air outlet 31 is connected to the air guide cavity 14 through the first port 32. It is understood that the position of the third damper 43 relative to the duct 3 is different in different modes. By placing the third damper 43 inside the duct 3, the fresh air module of this embodiment can reduce the number of components inside the housing 1 compared to the solution of "placing the third damper 43 inside the housing 1", thus facilitating the arrangement of components inside the housing 1.

[0059] Because the third damper 43 can cut off the flow between the second air outlet 31 and the first pipe outlet 32 ​​in exhaust mode, it can prevent airflow from flowing between the two outlets. In fresh air mode, the third damper 43 can also cut off the flow between the second air outlet 31 and the second pipe outlet 33, preventing airflow from flowing between them. In this embodiment of the invention, the fresh air module, by setting the third damper 43, can cooperate with the first damper 41 and the second damper 42 to control the exhaust and fresh air modes of the fresh air module. In other words, the switching between the exhaust and fresh air modes of the fresh air module can be completed through the above three dampers, thereby reducing the number of moving parts required, and the implementation is simple and reliable.

[0060] The fresh air module includes a third drive unit (not shown), which is connected to a third damper 43. The third drive unit drives the third damper 43 to rotate relative to the duct 3. It is understood that the third damper 43 is automatically controlled by the third drive unit to improve the ease of switching between different modes of the fresh air module. Furthermore, because the third drive unit drives the third damper 43 to rotate, the operation of the third damper 43 is simple, requires less installation space, and is easy to manufacture.

[0061] Optionally, such as Figure 3 and Figure 6 As shown, the first port 32 and the second port 33 are located on the same side of the housing 1, which allows for optimized design of the air path in the housing 1 and the air duct 3, facilitating the assembly of the air duct 3 and the housing 1. The structure is also compact, which helps to reduce the space occupied by the fresh air module.

[0062] In one example, such as Figure 3 and Figure 6 As shown, the duct 3 has a first inlet 32. In fresh air mode, the second air outlet 31 communicates with the air guide cavity 14 through the first inlet 32. The fresh air module includes a filter assembly 5, which is located in at least one of the housing 1 and the duct 3. The filter assembly 5 is arranged opposite to the first inlet 32. Because the filter assembly 5 is arranged opposite to the first inlet 32, in fresh air mode, the air entering the housing 1 through the second air outlet 31 can be filtered by the filter assembly 5 to ensure the cleanliness of the indoor air.

[0063] For example, the filter assembly 5 is located inside the housing 1, or the filter assembly 5 is located inside the air duct 3. Alternatively, the filter assembly 5 may be located in both the housing 1 and the air duct 3.

[0064] like Figure 8 As shown, the filter assembly 5 includes a filter bracket 51 and a filter element 52. The filter bracket 51 is located inside the air guide cavity 14, and the filter element 52 is detachably connected to the filter bracket 51. Since the filter bracket 51 is located inside the air guide cavity 14 of the housing 1, and the filter element 52 is detachably connected to the filter bracket 51, after the fresh air module has been working for a period of time, the user can open the housing 1 and remove the filter element 52 from the filter bracket 51 for easy removal and replacement, thus improving the convenience of user operation.

[0065] On the projection orthogonal to the axis of the first port 32, the outer periphery of the first port 32 lies within the outer periphery of the filter element 52, or the outer periphery of the first port 32 coincides with the outer periphery of the filter element 52. It is understood that the cross-sectional area of ​​the filter element 52 can be larger than the cross-sectional area of ​​the first port 32, or the cross-sectional area of ​​the filter element 52 can be equal to the cross-sectional area of ​​the first port 32.

[0066] Since the outer periphery of the first port 32 is located within the outer periphery of the filter element 52 on the projection orthogonal to the axis of the first port 32, or the outer periphery of the first port 32 coincides with the outer periphery of the filter element 52, it can be ensured that the airflow entering the first port 32 can be filtered through the filter element 52, thereby improving the dust removal and antibacterial effect of the airflow and ensuring the cleanliness of the airflow.

[0067] For example, the filter element 52 is retractably mounted on the filter bracket 51, and the direction in which the filter element 52 is retracted can be parallel to the vertical direction of the housing 1. Figure 8 As shown, the filter bracket 51 is provided with an installation cavity 511, which opens downwards. The filter element 52 slides and fits in the installation cavity 511 in the up-down direction, and can be pulled out of the installation cavity 511 in the down-up direction, which facilitates the installation and removal of the filter element 52.

[0068] For example, filter element 52 can be a HEPA filter.

[0069] Optionally, such as Figure 5 and Figure 7 As shown, the housing 1 includes a shell 11 and a cover plate 12. The shell 11 has an opening 112 on its lower side, which is sealed by the cover plate 12, which is detachably connected to the shell 11. It is understood that after the fresh air module is installed indoors, the cover plate 12 faces downwards. When it is necessary to inspect or replace the filter element 52 within the housing 1, the cover plate 12 can be removed from the shell 11 to open the opening 112, thus facilitating inspection or replacement of the filter element 52 within the housing 1. The actual usage effect is good.

[0070] Optionally, such as Figure 4 and Figure 7 As shown, the fan 2 is a centrifugal fan 2. The fan 2 includes an impeller 22 and a volute 21. The impeller 22 is located inside the volute 21. The air inlet 211 is connected to and opposite to the impeller 22. The inner walls of the impeller 22 and the volute 21 define an air outlet channel 212. When the impeller 22 rotates, it can introduce airflow from the air inlet 211 to the air outlet channel 212, thereby realizing airflow transmission and providing a good airflow guiding effect.

[0071] like Figure 4 and Figure 7 As shown, the fan 2 also includes a rotor motor 23 and a guide ring 25. The rotor motor 23 is located on the side of the volute 21 away from the air inlet 211, and is connected to the rotor 22. The rotor motor 23 drives the rotor 22 to rotate. The guide ring 25 is installed at the air inlet 211 of the volute 21 to improve the uniformity of the airflow entering the volute 21, which is beneficial to improving the air delivery efficiency of the fan 2.

[0072] Another embodiment of the air conditioning device of this utility model includes the fresh air module of this utility model. For example, the air conditioning device is a ducted air conditioner.

[0073] According to the air conditioning device of this utility model embodiment, in the exhaust mode, the fresh air module draws in air through the first air vent 111 and exits air through the second air vent 31; in the fresh air mode, the fresh air module draws in air through the second air vent 31 and exits air through the first air vent 111. This allows the fresh air module to share a single first air vent 111 in both exhaust and fresh air modes. That is, the first air vent 111 can draw in and exit air in different modes, thus eliminating the need for numerous air vents on the housing 1, simplifying its appearance, and resulting in a simpler structural design that improves the user experience.

[0074] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0077] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A fresh air module, characterized in that, include: The housing (1) is provided with a first air vent (111); A fan (2) is located inside the housing (1) and has an air inlet (211) and an air outlet (212). Air duct (3), the air duct (3) is connected to the housing (1), and the air duct (3) is provided with a second air outlet (31); The fresh air module can be switched between exhaust mode and fresh air mode. In exhaust mode, the first air inlet (111) is connected to the air inlet (211), the air outlet (212) is connected to the second air inlet (31), and the second air inlet (31) is connected to the air outlet. In the fresh air mode, the second air inlet (31) receives air and is connected to the air inlet (211), the air outlet channel (212) is connected to the first air inlet (111), and the first air inlet (111) discharges air.

2. The fresh air module according to claim 1, characterized in that, The housing (1) is provided with an exhaust duct (13). In the exhaust mode, the first end of the exhaust duct (13) is connected to the air outlet duct (212), and the second end of the exhaust duct (13) is connected to the second air vent (31). In the fresh air mode, at least one of the air outlet duct (212) and the second air vent (31) is disconnected from the exhaust duct (13).

3. The fresh air module according to claim 2, characterized in that, The fresh air module includes a first damper (41) and a second damper (42). The first damper (41) is movably connected to the air outlet duct (212), and the second damper (42) is movably connected to the exhaust duct (13). In the exhaust mode, the first damper (41) and the second damper (42) cooperate to connect the air outlet duct (212) and the exhaust duct (13). In the fresh air mode, the first air damper (41) and the second air damper (42) are spaced apart and form a transition air duct (24). The air outlet duct (212) is connected to the first air outlet (111) through the transition air duct (24), and the second air damper (42) cuts off the connection between the air outlet duct (212) and the exhaust air duct (13).

4. The fresh air module according to claim 3, characterized in that, The fresh air module includes a first driving component and a second driving component. The first driving component is connected to the first damper (41) and is used to drive the first damper (41) to rotate relative to the air outlet channel (212). The second driving component is connected to the second damper (42) and is used to drive the second damper (42) to rotate relative to the exhaust channel (13).

5. The fresh air module according to claim 3, characterized in that, In the exhaust mode, and along the projection orthogonal to the thickness direction of the first damper (41), the projection surface of the first damper (41) overlaps at least partially with the projection surface of the second damper (42).

6. The fresh air module according to claim 3, characterized in that, The housing (1) is provided with a first stop block (15), which is arranged near the edge of the first air outlet (111). In the fresh air mode, the first air damper (41) abuts against the first stop block (15). And / or, the housing (1) is provided with a second stop block (16), and in the exhaust mode, the second air damper (42) abuts against the second stop block (16), and the first air damper (41) abuts against the second air damper (42).

7. The fresh air module according to claim 1, characterized in that, The outer wall of the fan (2) and the inner wall of the housing (1) define an air guide cavity (14). In the exhaust mode, the first air outlet (111) is connected to the air inlet (211) through the air guide cavity (14). In the fresh air mode, the second air outlet (31) is connected to the air inlet (211) through the air guide cavity (14).

8. The fresh air module according to claim 7, characterized in that, The fresh air module includes a third damper (43), which is movably installed inside the air duct (3). The air duct (3) has a first port (32) and a second port (33). Both the first port (32) and the second port (33) are fitted with the housing (1). In the exhaust mode, the third damper (43) cuts off the second air outlet (31) from the first port (32). The second air outlet (31) is connected to the air outlet channel (212) through the second port (33). In the fresh air mode, the third damper (43) cuts off the second air outlet (31) from the second port (33). The second air outlet (31) is connected to the air guide cavity (14) through the first port (32).

9. The fresh air module according to claim 8, characterized in that, The fresh air module includes a third driving component, which is connected to the third air damper (43) and is used to drive the third air damper (43) to rotate relative to the air duct (3).

10. The fresh air module according to claim 8, characterized in that, The first port (32) and the second port (33) are located on the same side of the housing (1).

11. The fresh air module according to claim 7, characterized in that, The air duct (3) is provided with a first port (32). In the fresh air mode, the second air outlet (31) is connected to the air guide cavity (14) through the first port (32). The fresh air module includes a filter assembly (5). The filter assembly (5) is disposed in at least one of the housing (1) and the air duct (3). The filter assembly (5) is arranged opposite to the first port (32).

12. The fresh air module according to claim 11, characterized in that, The filter assembly (5) includes a filter bracket (51) and a filter element (52). The filter bracket (51) is disposed in the air guide cavity (14). The filter element (52) is detachably connected to the filter bracket (51). On the projection of the first port (32) along an axis orthogonal to the first port (32), the outer periphery of the first port (32) is located within the outer periphery of the filter element (52), or the outer periphery of the first port (32) coincides with the outer periphery of the filter element (52).

13. The fresh air module according to any one of claims 1-12, characterized in that, The housing (1) includes a housing (11) and a cover plate (12). The housing (11) has an opening (112) on its lower side. The cover plate (12) blocks the opening (112) and is detachably connected to the housing (11).

14. The fresh air module according to any one of claims 1-12, characterized in that, The fan (2) includes a fan wheel (22) and a volute (21). The fan wheel (22) is located inside the volute (21). The air inlet (211) is connected to the fan wheel (22) and arranged opposite to it. The fan wheel (22) and the inner wall of the volute (21) define the air outlet channel (212).

15. An air conditioning device, characterized in that, Includes the fresh air module as described in any one of claims 1-14.

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