Fresh air module and air conditioning device

Abstract

The present disclosure relates to a fresh air module and an air conditioning device, the fresh air module comprising a shell, a wind pipe and a fan, the shell being provided with a first air inlet; the wind pipe being connected with the shell; the fan having a fan inlet and a fan outlet, the fan being arranged in the shell and being rotatable in a first direction and a second direction opposite to the first direction to switch between an exhaust mode and a fresh air mode; in the exhaust mode, the fan inlet is communicated with the first air inlet, and the fan outlet is communicated with the wind pipe; in the fresh air mode, the wind pipe is communicated with the fan inlet, and the fan outlet is communicated with the first air inlet. The fresh air module of the present disclosure can switch between the exhaust mode and the fresh air mode by rotating the fan in different directions, effectively simplifying the switching structure of the fresh air module and reducing the cost of the fresh air module.

Description

Technical Field

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

[0002] As users have increasingly higher requirements for their living environment, their focus has shifted from regulating temperature and humidity to pursuing higher air quality. This has led to the development of air purifiers and air conditioning devices with fresh air functions. However, current air conditioning devices typically only offer fresh air intake and lack rapid exhaust capabilities, failing to meet users' demands for quick indoor air replacement and resulting in a poor user experience. Alternatively, while some may have exhaust functions, the switching between fresh and exhaust air is complex and costly. Summary of the Invention

[0003] This disclosure proposes a fresh air module to simplify its structure and reduce its cost.

[0004] The disclosed fresh air module includes a housing, a duct, and a duct itself. The housing has a first air outlet. The duct is connected to the housing. The fan has a fan inlet and a fan outlet. The fan is disposed inside the housing and is rotatable along a first direction and a second direction opposite to the first direction to switch between exhaust mode and fresh air mode. In exhaust mode, the fan inlet is connected to the first air outlet, and the fan outlet is connected to the duct. In fresh air mode, the duct is connected to the fan inlet, and the fan outlet is connected to the first air outlet.

[0005] Optionally, the fresh air module further includes a first damper, which is movably connected to the duct between a first position and a second position; in the exhaust mode, the first damper is located in the first position to connect the fan outlet to the duct; in the fresh air mode, the first damper is located in the second position to connect the duct to the fan inlet.

[0006] Optionally, the housing is provided with a second air outlet and a third air outlet, the second air outlet being connected to the fan outlet and the third air outlet being connected to the fan inlet; in the first position, the air duct is connected to the second air outlet so that the fan outlet is connected to the air duct through the second air outlet; in the second position, the air duct is connected to the third air outlet so that the air duct is connected to the fan inlet through the third air outlet.

[0007] Optionally, the duct includes a first port, a second port, and a third port, wherein the second port is connected to the second air outlet, and the third port is connected to the third air outlet; in the first position, the first port is connected to the second port, and the first port and the third port are disconnected; in the second position, the first port is connected to the third port, and the first port and the second port are disconnected.

[0008] Optionally, the duct is provided with a first stop and a second stop; in the first position, the first damper abuts against the first stop, and in the second position, the first damper abuts against the second stop.

[0009] Optionally, the first stop portion is disposed between the first pipe opening and the second pipe opening, and the second stop portion is disposed between the first pipe opening and the third pipe opening.

[0010] Optionally, the first damper is rotatably connected to the duct.

[0011] Optionally, the second air vent and the third air vent are located on the same side of the housing.

[0012] Optionally, a second damper is provided inside the housing, and the second damper is movably connected to the housing between a third position and a fourth position; in the exhaust mode, the second damper is located in the third position so that the fan inlet is connected to the first air outlet; in the fresh air mode, the second damper is located in the fourth position so that the fan outlet is connected to the first air outlet.

[0013] Optionally, the housing is provided with an air inlet and an air outlet, and the second damper is used to open one of the air inlet and the air outlet and close the other of the air inlet and the air outlet; in the exhaust mode, the second damper opens the air inlet, and the fan inlet is connected to the first air outlet through the air inlet; in the fresh air mode, the second damper opens the air outlet, and the fan outlet is connected to the first air outlet through the air outlet.

[0014] Optionally, the housing is provided with a third stop and a fourth stop; in the third position, the second damper abuts against the third stop; in the fourth position, the second damper abuts against the fourth stop.

[0015] Optionally, the second damper is rotatably connected to the housing.

[0016] Optionally, the fan outlet includes a first outlet and a second outlet; in the exhaust mode, the first outlet is connected to the duct; in the fresh air mode, the second outlet is connected to the first air outlet.

[0017] Optionally, in the exhaust mode, the first outlet is configured corresponding to the air duct; and / or, in the fresh air mode, the second outlet is configured corresponding to the first air outlet.

[0018] Optionally, the fan includes a fan casing, a first impeller, and a second impeller. The first impeller and the second impeller are stacked inside the fan casing. The fan inlet, the first outlet, and the second outlet are all located in the fan casing. The first outlet is located corresponding to the first impeller, and the second outlet is located corresponding to the second impeller.

[0019] Optionally, the first impeller includes a first blade, and the second impeller includes a second blade, wherein the bending direction of the first blade is opposite to that of the second blade.

[0020] Optionally, the fan inlet is located on the same axial side of the first impeller and the second impeller.

[0021] Optionally, the fan further includes a motor, which is connected to both the first impeller and the second impeller to simultaneously drive the first impeller and the second impeller to rotate. The motor is located on the side of the fan casing away from the fan inlet.

[0022] Optionally, the fan casing includes a first volute and a second volute, which are stacked together. The first impeller is disposed inside the first volute, the second impeller is disposed inside the second volute, the first outlet is disposed in the first volute, and the second outlet is disposed in the second volute.

[0023] Optionally, the fresh air module further includes a filter device disposed between the duct and the fan to filter the airflow flowing from the duct into the housing.

[0024] Optionally, the housing includes a bottom shell and a cover plate, the cover plate being detachably connected to the bottom shell, and the filter device being detachably connected to the bottom shell.

[0025] Optionally, the bottom shell has an opening, which is sealed by a cover plate, allowing the filter device to pass through.

[0026] Optionally, the filtration device includes a support and a filter screen, the support being connected to the housing and the filter screen being detachably connected to the support.

[0027] Optionally, the fan further includes an air guide ring, which is detachably disposed at the fan inlet.

[0028] Optionally, the duct and the first air outlet are located on different sides of the housing.

[0029] This disclosure also proposes an air conditioning device.

[0030] The air conditioning equipment disclosed herein includes the fresh air module described in any of the above claims.

[0031] In this disclosed fresh air module, when performing exhaust ventilation, the fan rotates counterclockwise, putting the module in exhaust mode. This connects the fan inlet to the first air vent and the fan outlet to the duct. In this mode, indoor airflow, driven by the fan, enters the housing through the first air vent, then sequentially passes through the fan inlet and outlet, and is exhausted to the outside through the duct. In fresh air mode, the fan rotates clockwise, putting the module in fresh air mode. This connects the duct to the fan inlet and the fan outlet to the first air vent. In this mode, outdoor airflow, driven by the fan, enters the housing through the duct, then sequentially passes through the fan inlet and outlet, and is exhausted to the inside through the first air vent. This disclosed fresh air module allows switching between exhaust and fresh air modes simply by rotating the fan in different directions, effectively simplifying the switching structure and reducing the module's cost. Attached Figure Description

[0032] Figure 1 This is a bottom view of a fresh air module in exhaust mode according to an embodiment of the present disclosure (the cover plate is hidden).

[0033] Figure 2 yes Figure 1 AA view.

[0034] Figure 3 yes Figure 1 BB view.

[0035] Figure 4 This is a perspective view of a fresh air module in exhaust mode according to an embodiment of the present disclosure (the cover plate is hidden).

[0036] Figure 5 yes Figure 3 The CC view.

[0037] Figure 6 yes Figure 3 DD view.

[0038] Figure 7 This is a perspective view of a fresh air module in fresh air mode according to an embodiment of the present disclosure.

[0039] Figure 8 This is a bottom view of a fresh air module in fresh air mode according to an embodiment of the present disclosure.

[0040] Figure 9 yes Figure 8 EE view.

[0041] Figure 10 yes Figure 8 FF view.

[0042] Figure 11 yes Figure 10 The GG view.

[0043] Figure 12 yes Figure 10 The HH view.

[0044] Figure 13 This is a perspective view of the impeller of a fresh air module according to an embodiment of the present disclosure.

[0045] Figure 14 This is a front view of the impeller of a fresh air module according to an embodiment of the present disclosure.

[0046] Figure 15 yes Figure 14 View II.

[0047] Figure 16 yes Figure 14 The JJ view.

[0048] Figure 17 This is an exploded view of the filtration device of a fresh air module according to an embodiment of the present disclosure.

[0049] Figure 18 This is an exploded view from another perspective of the filtration device of a fresh air module according to an embodiment of the present disclosure.

[0050] Figure label:

[0051] 100. Fresh air module;

[0052] 1. Shell; 11. Bottom shell; 111. First air inlet; 112. Second air inlet; 113. Third air inlet; 114. Opening; 12. Cover plate; 13. Third stop; 14. Fourth stop; 15. Air inlet; 16. Air outlet;

[0053] 2. Air duct; 21. First duct inlet; 22. Second duct inlet; 23. Third duct inlet; 24. First stop section; 25. Second stop section;

[0054] 3. Fan; 31. Fan casing; 311. First volute; 312. Second volute; 313. Fan inlet; 314. Fan outlet; 3141. First outlet; 3142. Second outlet; 32. First impeller; 321. First blade; 33. Second impeller; 331. Second blade; 34. Motor; 35. Air guide ring;

[0055] 4. First air damper;

[0056] 5. Second air damper;

[0057] 6. Filter device; 61. Support; 62. Filter screen. Detailed Implementation

[0058] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0059] like Figures 1 to 12 As shown, the fresh air module 100 of this embodiment includes a housing 1, an air duct 2, and a fan 3. The housing 1 has a first air outlet 111, the air duct 2 is connected to the housing 1, and the fan 3 has a fan inlet 313 and a fan outlet 314. The fan 3 is disposed inside the housing 1. The fan 3 is rotatable along a first direction and a second direction opposite to the first direction to switch between exhaust mode and fresh air mode. In exhaust mode, the fan inlet 313 is connected to the first air outlet 111, and the fan outlet 314 is connected to the air duct 2. In fresh air mode, the air duct 2 is connected to the fan inlet 313, and the fan outlet 314 is connected to the first air outlet 111.

[0060] For example, the first direction is clockwise and the second direction is counterclockwise. When the fan 3 rotates clockwise, the fresh air module 100 switches from exhaust mode to fresh air mode. When the fan 3 rotates counterclockwise, the fresh air module 100 switches from fresh air mode to exhaust mode.

[0061] In this embodiment of the fresh air module 100, when performing the exhaust function, the fan 3 rotates counterclockwise, causing the fresh air module 100 to be in exhaust mode, such as... Figure 4 and Figure 5 As shown, the fan inlet 313 is connected to the first air outlet 111, and the fan outlet 314 is connected to the air duct 2. At this time, the indoor airflow, driven by the fan 3, enters the housing 1 through the first air outlet 111, then sequentially passes through the fan inlet 313 and the fan outlet 314, and is discharged to the outside through the air duct 2. In fresh air mode, the fan 3 rotates clockwise, putting the fresh air module 100 in fresh air mode, as shown... Figure 10 and Figure 11 As shown, the duct 2 is connected to the fan inlet 313, and the fan outlet 314 is connected to the first air vent 111. At this time, outdoor airflow, driven by the fan 3, enters the housing 1 through the duct 2, then sequentially passes through the fan inlet 313 and the fan outlet 314, and is discharged into the room through the first air vent 111. The fresh air module 100 of this embodiment can switch between exhaust and fresh air modes by rotating the fan 3 in different directions, effectively simplifying the switching structure of the fresh air module 100 and reducing its cost.

[0062] Optionally, the duct 2 and the first air outlet 111 are located on different sides of the housing 1.

[0063] For example, the air duct 2 is located on the left side of the housing 1, and the first air outlet 111 is located on the front side of the housing 1.

[0064] When the fresh air module 100 is in use, the duct 2 needs to be connected to the outside and the first air outlet 111 needs to be connected to the inside. By setting the duct 2 and the first air outlet 111 on different sides of the housing 1, it is convenient to set the orientation of the duct 2 and the first air outlet 111 as needed, thereby facilitating the installation of the fresh air module 100.

[0065] Optionally, such as Figure 5 and Figure 11 As shown, the fresh air module 100 also includes a first damper 4, which is movably connected to the duct 2 between a first position and a second position. In exhaust mode, the first damper 4 is in the first position, so that the fan outlet 314 is connected to the duct 2. In fresh air mode, the first damper 4 is in the second position, so that the duct 2 is connected to the fan inlet 313.

[0066] In exhaust mode, the fan outlet 314 is connected to the duct 2, allowing the airflow inside the fan 3 to be discharged to the outside through the fan outlet 314 and the duct 2; in fresh air mode, the fan inlet 313 is connected to the duct 2, allowing the outdoor airflow to enter the housing 1 through the duct 2 and enter the fan 3 through the fan inlet 313 under the drive of the fan 3.

[0067] By setting the first damper 4, when switching between exhaust mode and fresh air mode, the duct 2 can be connected to one of the fan inlet 313 and fan outlet 314 through the first damper 4, which can further simplify the switching structure of the fresh air module 100 and reduce the cost of the fresh air module 100.

[0068] Optionally, the first damper 4 is rotatably connected to the duct 2.

[0069] For example, the first damper 4 is rotatably connected to the air duct 2 via a rotating shaft.

[0070] The first air damper 4 is rotatably connected to the air duct 2. By rotating the first air damper 4, the first air damper 4 can be switched between the first position and the second position, which helps to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0071] Optionally, a first motor is installed inside the duct 2, and the first motor is connected to the first damper 4 to drive the first damper 4 to rotate.

[0072] By setting a first motor, the first damper 4 is driven to rotate, thereby switching the first damper 4 between a first position and a second position. The first motor can be a stepper motor.

[0073] Optionally, the rotation angle of the first damper 4 is less than 90°.

[0074] In other words, when the first damper 4 rotates from the first position to the second position, the rotation angle of the first damper 4 is less than 90°, and when the first damper 4 rotates from the second position to the first position, the rotation angle of the first damper 4 is less than 90°.

[0075] This results in a smaller rotation angle for the first damper 4, which helps improve the switching efficiency of the first damper 4 between the first and second positions, thereby improving the switching efficiency of the fresh air module 100 between exhaust mode and fresh air mode, and further enhancing the user experience.

[0076] Optionally, the housing 1 is provided with a second air outlet 112 and a third air outlet 113. The second air outlet 112 is connected to the fan outlet 314, and the third air outlet 113 is connected to the fan inlet 313. In a first position, the duct 2 is connected to the second air outlet 112 so that the fan outlet 314 is connected to the duct 2 through the second air outlet 112; in a second position, the duct 2 is connected to the third air outlet 113 so that the duct 2 is connected to the fan inlet 313 through the third air outlet 113.

[0077] By designing the housing 1 to have a second air outlet 112 and a third air outlet 113, it is convenient to connect the air duct 2 with the fan outlet 314 and the fan inlet 313, which helps to simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0078] Optionally, such as Figure 5 , Figure 6 , Figure 11 and Figure 12 As shown, the second air vent 112 and the third air vent 113 are located on the same side of the housing 1.

[0079] For example, the second air vent 112 and the third air vent 113 are both located on the left side of the housing 1.

[0080] By placing the second air vent 112 and the third air vent 113 on the same side of the housing 1, the distance between the second air vent 112 and the third air vent 113 is small. When the length of the air duct 2 is short, it can be connected to the second air vent 112 and the third air vent 113, which helps to further reduce the cost of the fresh air module 100.

[0081] Optionally, the duct 2 includes a first port 21, a second port 22, and a third port 23. The second port 22 is connected to the second air vent 112, and the third port 23 is connected to the third air vent 113. In a first position, the first port 21 is connected to the second port 22, and the connection between the first port 21 and the third port 23 is closed. In a second position, the first port 21 is connected to the third port 23, and the connection between the first port 21 and the second port 22 is closed.

[0082] By setting the duct 2 to have a first port 21, a second port 22 and a third port 23, it is convenient to connect the duct 2 with the fan inlet 313 and the third air outlet 113, which helps to simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0083] Optionally, such as Figure 5 and Figure 11 As shown, the duct 2 is provided with a first stop portion 24 and a second stop portion 25. In the first position, the first damper 4 abuts against the first stop portion 24. In the second position, the first damper 4 abuts against the second stop portion 25.

[0084] By setting a first stop 24 and a second stop 25 inside the air duct 2, the first air damper 4 can be limited, thereby improving the reliability of the first air damper 4 and thus improving the reliability of the fresh air module 100.

[0085] On the ground, the first stop portion 24 and the second stop portion 25 are protrusions provided inside the housing 1.

[0086] Optionally, the first stop portion 24 is disposed between the first port 21 and the second port 22, and the second stop portion 25 is disposed between the first port 21 and the third port 23.

[0087] By placing the first stop 24 between the first pipe opening 21 and the second pipe opening 22, and placing the second stop 25 between the first pipe opening 21 and the third pipe opening 23, the distance between the first stop 24 and the second stop 25 is smaller, which helps to improve the switching efficiency of the first damper 4 between the first position and the second position, thereby improving the switching efficiency of the fresh air module 100 between the exhaust mode and the fresh air mode, and further improving the user experience.

[0088] Optionally, such as Figure 5 , Figure 6 and Figure 11 As shown, the fan outlet 314 includes a first outlet 3141 and a second outlet 3142. In exhaust mode, the first outlet 3141 is connected to the duct 2, and the second outlet 3142 is disconnected from the first air outlet 111; in fresh air mode, the first outlet 3141 is disconnected from the duct 2, and the second outlet 3142 is connected to the first air outlet 111.

[0089] The fan 3 can rotate the first outlet 3141 and the second outlet 3142 to different positions by rotating along the first direction and along the second direction, so that the first outlet 3141 and the second outlet 3142 can be connected and disconnected from the air duct 2 and the first air outlet 111.

[0090] like Figure 5 As shown, in exhaust mode, the airflow inside the fan 3 flows out through the first outlet 3141, and then is discharged outdoors through the duct 2. Figure 11 As shown, in fresh air mode, the airflow inside the fan 3 is discharged through the second outlet 3142, and then discharged into the room through the first air vent 111.

[0091] By setting the fan 3 to the above structure, it is convenient to connect and disconnect the fan outlet with the air duct 2 and the first air outlet 111, thereby further simplifying the switching structure of the fresh air module 100 and reducing the cost of the fresh air module 100.

[0092] Optionally, a second damper 5 is provided inside the housing 1, and the second damper 5 is movably connected to the housing 1 between a third position and a fourth position. In exhaust mode, the second damper 5 is in the third position so that the fan inlet 313 is connected to the first air outlet 111; in fresh air mode, the second damper 5 is in the fourth position so that the fan outlet 314 is connected to the first air outlet 111.

[0093] By setting a second damper 5, when switching between exhaust mode and fresh air mode, the first air outlet 111 can be connected to one of the fan inlet 313 and fan outlet 314 through the second damper 5, which can further simplify the switching structure of the fresh air module 100 and reduce the cost of the fresh air module 100.

[0094] Optionally, the second damper 5 is rotatably connected to the housing 1.

[0095] For example, the second damper 5 is rotatably connected to the housing 1 via a rotating shaft.

[0096] The second air damper 5 is rotatably connected to the housing 1. By rotating the second air damper 5, it can be switched between the third and fourth positions, which helps to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0097] Optionally, a second motor is provided inside the housing 1, and the second motor is connected to the second damper 5 to drive the second damper 5 to rotate. The second motor can be a stepper motor.

[0098] By setting a second motor, the second damper 5 is driven to rotate, thereby switching the second damper 5 between the third and fourth positions.

[0099] Optionally, the rotation angle of the second damper 5 is less than 90°.

[0100] In other words, when the second damper 5 switches from opening the first outlet 3141 to closing the first outlet 3141, the rotation angle of the second damper 5 is less than 90°, and when switching from closing the first outlet 3141 to opening the first outlet 3141, the rotation angle of the second damper 5 is less than 90°.

[0101] This results in a smaller rotation angle for the second damper 5, which helps improve the switching efficiency of the second damper 5, thereby improving the switching efficiency of the fresh air module 100 between exhaust mode and fresh air mode, and further enhancing the user experience.

[0102] Optionally, such as Figure 2 and Figure 9 As shown, the housing 1 is provided with a third stop portion 13 and a fourth stop portion 14. In the third position, the second damper 5 abuts against the third stop portion 13. In the fourth position, the second damper 5 abuts against the fourth stop portion 14.

[0103] By providing a third stop 13 and a fourth stop 14 inside the housing 1, the second air damper 5 can be limited, thereby improving the reliability of the second air damper 5 and thus improving the reliability of the fresh air module 100.

[0104] On the ground, the third stop portion 13 and the fourth stop portion 14 are protrusions provided inside the housing 1.

[0105] In some embodiments, such as Figure 2 , Figure 3 and Figure 9 As shown, the fan outlet 314 includes a first outlet 3141 and a second outlet 3142. In the exhaust mode, the first outlet 3141 is connected to the air duct 2; in the fresh air mode, the second outlet 3142 is connected to the first air outlet 111.

[0106] By setting the fan outlet 314 to include a first outlet 3141 and a second outlet 3142, in different modes, one of the first outlet 3141 and the second outlet 3142 is connected to one of the air duct 2 and the first air outlet 111, which facilitates the connection between the fan outlet 314 and one of the air duct 2 and the first air outlet 111.

[0107] Optionally, such as Figure 5 As shown, in exhaust mode, the first outlet 3141 is set in duct 2.

[0108] In exhaust mode, by setting the first outlet 3141 to correspond to the air duct 2, it is easy to connect the first outlet 3141 to the air duct 2, which helps to further simplify the structure of the fresh air module 100 and reduce the cost of the fresh air module 100.

[0109] Optionally, such as Figure 11 As shown, in fresh air mode, the second outlet 3142 is set to correspond to the first air outlet 111.

[0110] In fresh air mode, by setting the second outlet 3142 to correspond to the first air outlet 111, it is convenient to connect the second outlet 3142 to the first air outlet 111, which helps to further simplify the structure of the fresh air module 100 and reduce the cost of the fresh air module 100.

[0111] Optionally, the fan 3 includes a fan casing 31, a first impeller 32, and a second impeller 33. The first impeller 32 and the second impeller 33 are stacked within the fan casing 31. The fan inlet 313, the first outlet 3141, and the second outlet 3142 are all located within the fan casing 31. The first outlet 3141 can be configured corresponding to the first impeller 32, and the second outlet 3142 can be configured corresponding to the second impeller 33. This allows the first impeller 32 to drive the airflow in exhaust mode, and the second impeller 33 to drive the airflow in fresh air mode.

[0112] By setting a first impeller 32 and a second impeller 33 inside the fan casing 31, the airflow can be driven by the first impeller 32 in exhaust mode and by the second impeller 33 in fresh air mode. This allows for the selection of different impellers to drive the airflow in different modes, thereby improving the performance of the fresh air module 100.

[0113] Optionally, such as Figures 13 to 16 As shown, the first impeller 32 includes a first blade 321, and the second impeller 33 includes a second blade 331. The bending direction of the first blade 321 is opposite to the bending direction of the second blade 331.

[0114] For example, the first blade 321 bends clockwise, and the second blade 331 bends counterclockwise.

[0115] By setting the bending direction of the first impeller 321 to be opposite to that of the second impeller 331, in different modes, only one of the first impeller 32 and the second impeller 33 is used to drive the airflow, while the other impeller cannot drive the airflow. This facilitates the design of impellers for different modes as needed, further improving the performance of the fresh air module 100.

[0116] The first impeller 32 and the second impeller 33 can be designed and adjusted as needed. The number of blades in the first impeller 32 and the second impeller 33 can be the same or different. The height of the first impeller 32 and the second impeller 33 can be the same or different. The shape of the first blade 321 and the second blade 331 can be the same or different.

[0117] Optionally, the fan inlet 313 is located on the same axial side of the first impeller 32 and the second impeller 33.

[0118] For example, the fan inlet 313 is located on the lower side of the first impeller 32 and the second impeller 33.

[0119] In exhaust mode, the airflow enters the fan 3 through the fan inlet 313 driven by the first impeller 32, and exits the fan 3 through the first outlet 3141 after passing through the first impeller 32; in fresh air mode, the airflow enters the fan 3 through the fan inlet 313 driven by the second impeller 33, and exits the fan 3 through the second outlet 3142 after passing through the second impeller 33.

[0120] By placing the fan inlet 313 on the same axial side of the first impeller 32 and the second impeller 33, it is convenient for airflow to reach the first impeller 32 and the second impeller 33 through the fan inlet 313.

[0121] Optionally, such as Figure 3 , Figure 9 and Figure 10 As shown, the fan 3 also includes a motor 34, which is connected to both the first impeller 32 and the second impeller 33 to drive the first impeller 32 and the second impeller 33 to rotate simultaneously. The motor 34 is located on the side of the fan casing 31 away from the fan inlet 313.

[0122] For example, a motor 34 is located below the first impeller 32 and the second impeller 33. The motor 34 is connected to the first impeller 32 and the second impeller 33 via a shaft, and simultaneously drives the first impeller 32 and the second impeller 33 to rotate. The motor 34 drives the first impeller 32 and the second impeller 33 to rotate along a first direction and a second direction.

[0123] By placing the motor 34 on the side of the fan housing 31 away from the fan inlet 313, the motor 34 can be prevented from affecting the air intake area of ​​the fan inlet 313, which is conducive to increasing the air intake area of ​​the fan 3 and increasing the air volume of the fresh air module 100.

[0124] Optionally, such as Figure 3 and Figure 9 As shown, the fan casing 31 includes a first volute 311 and a second volute 312, which are stacked together. A first impeller 32 is disposed inside the first volute 311, a second impeller 33 is disposed inside the second volute 312, a first outlet 3141 is disposed inside the first volute 311, and a second outlet 3142 is disposed inside the second volute 312.

[0125] The first volute 311 is located below the second volute 312, and the first impeller 32 is located below the second impeller 33. For example... Figure 4and Figure 5 As shown, in exhaust mode, the air inlet 15 is open and the exhaust outlet 16 is closed, allowing the first air outlet 111 to connect with the fan inlet 313 through the air inlet 15. Driven by the first impeller 32, the indoor airflow sequentially passes through the first air outlet 111 and the fan inlet 313 into the fan 3, and is then exhausted to the outside through the first outlet 3141 and the duct 2. Figure 10 and Figure 11 As shown, in fresh air mode, the air inlet 15 is closed and the exhaust outlet 16 is open, so that the second outlet 3142 is connected to the first air outlet 111 through the exhaust outlet 16, so that the outdoor airflow, driven by the second impeller 33, enters the fan 3 through the air duct 2, and is then discharged into the room through the second outlet 3142 and the exhaust outlet 16.

[0126] By configuring the fan housing 31 to include a first volute 311 and a second volute 312, and setting the first outlet 3141 and the second outlet 3142 in different volutes, it is convenient to design different parts of the fan housing 31 according to requirements, which is conducive to further improving the performance of the fresh air module 100.

[0127] Optionally, such as Figure 1 and Figure 8 As shown, the fan 3 also includes a guide ring 35, which is detachably located at the fan inlet 313.

[0128] For example, the air guide ring 35 is connected to the fan housing 31 by screws so that the air guide ring 35 can be connected to and removed from the fan housing 31.

[0129] By setting a guide ring 35 at the fan inlet 313, the airflow inside the housing 1 can be guided so that the airflow inside the housing 1 enters the fan 3 through the fan inlet 313, thereby increasing the air volume of the fresh air module 100.

[0130] Optionally, such as Figure 3 , Figure 5 , Figure 11 and Figure 12 As shown, the fresh air module 100 also includes a filter device 6, which is located between the air duct 2 and the fan 3 to filter the airflow flowing from the air duct 2 into the housing 1.

[0131] By setting up a filter device 6, the airflow flowing from the duct 2 into the housing 1 can be filtered, thereby improving the quality of the airflow entering the housing 1, thus improving the quality of the airflow entering the room and enhancing the user experience of the fresh air module 100.

[0132] Optionally, the filter device 6 is disposed inside the housing 1 and located at the third air outlet 113.

[0133] The filter device 6 is positioned such that after outdoor airflow enters the housing 1 through the duct 2, it is filtered by the filter device 6 located at the third air outlet 113 before entering the fan 3 inside the housing 1. By placing the filter device 6 inside the housing 1, the housing 1 can protect the filter device 6, thereby improving the reliability of the fresh air module 100.

[0134] In other embodiments, the filter device 6 may be disposed outside the housing 1 and located at the opening of the duct 2 facing the housing 1. For example, the filter device 6 may be disposed at the third opening 23 of the duct 2.

[0135] Optionally, the housing 1 includes a bottom shell 11 and a cover plate 12, the cover plate 12 being detachably connected to the bottom shell 11, and the filter device 6 being detachably connected to the bottom shell 11.

[0136] When the filter device 6 needs to be replaced or repaired, first remove the cover plate 12 from the bottom shell 11, and then remove the filter device 6 from the bottom shell 11. When installing the filter device 6, first connect the filter device 6 to the bottom shell 11, and then connect the cover plate 12 to the bottom shell 11.

[0137] By detachably connecting the cover plate 12 to the bottom shell 11, the filter device 6 is detachably connected to the bottom shell 11, which facilitates the replacement and maintenance of the filter device 6.

[0138] Optionally, the cover plate 12 is connected to the bottom shell 11 by screws or clips, and the filter device 6 is connected to the bottom shell 11 by screws or clips.

[0139] Optionally, the bottom shell 11 has an opening 114, which is sealed by a cover plate 12, allowing the filter device 6 to pass through.

[0140] For example, the bottom shell 11 has a cavity, and the opening 114 communicates with the cavity.

[0141] When the filter device 6 needs to be replaced or repaired, pull the filter device 6 downwards to move it through the opening and out of the cavity so that the filter device 6 can be removed from the bottom shell 11. When installing the filter device 6, push the filter device 6 upwards so that the filter device 6 passes through the opening and enters the cavity so that the filter device 6 can be connected to the bottom shell 11.

[0142] Optionally, such as Figure 17 and Figure 18 As shown, the filter device 6 includes a bracket 61 and a filter screen 62. The bracket 61 is connected to the housing 1, and the filter screen 62 is detachably connected to the bracket 61.

[0143] The filter screen 62 and the bracket 61 can be interference-fitted. The filter screen 62 can be installed into the bracket 61 by deformation and removed from the bracket 61.

[0144] By detachably connecting the filter screen 62 to the bracket 61, the filter screen 62 of the filter device 6 can be easily disassembled for cleaning or replacement.

[0145] Optionally, the bracket 61 has a mounting cavity and a mounting port, the mounting port communicating with the mounting cavity, the filter screen 62 being disposed within the mounting cavity, and the mounting port allowing the filter screen 62 to pass through. The number of mounting ports can be one or more.

[0146] When disassembling the filter screen 62, the filter screen 62 is deformed and passes through the mounting port, thereby removing the filter screen 62 from the mounting cavity; when installing the filter screen 62, the filter screen 62 is deformed and passes through the mounting port, thereby inserting the filter screen 62 into the mounting cavity.

[0147] Optionally, the bracket 61 is provided with a handle for taking out, placing, and removing the filter device 6.

[0148] Optionally, filter 62 is a HEPA filter.

[0149] The fresh air module 100 of this embodiment has a first volute 311 and a second volute 312 connected together. The first volute 311 forms an air outlet duct, and a first outlet 3141 is connected to the air outlet duct of the first volute 311. The second volute 312 forms an air outlet duct, and a second outlet 3142 is connected to the air outlet duct of the second volute 312. A first damper 4 is provided inside the duct 2. By rotating the first damper 4 to different positions, the duct 2 is connected to one of the fan outlet 314 and the fan inlet 313. A second damper 5 is provided inside the housing 1. By rotating the second damper 5 to different positions, the first air outlet 111 is connected to one of the fan inlet 313 and the fan outlet 314.

[0150] When the motor 34 drives the fan 3 to rotate counterclockwise, the fresh air module 100 is in exhaust mode. At this time, the first damper 4 rotates to the first position, and the air duct 2 is connected to the first outlet 3141. The second damper 5 rotates to the third position, and the second damper 5 opens the air inlet 15, so that the fan inlet 313 is connected to the first air outlet 111. At this time, driven by the first impeller 32, the indoor airflow enters the first volute 311 through the first air outlet 111, the air inlet 15 and the fan inlet 313, and then flows out to the outside through the first outlet 3141 of the first volute 311 and the air duct 2.

[0151] When the motor 34 drives the fan 3 to rotate clockwise, the fresh air module 100 is in fresh air mode. At this time, the first damper 4 rotates to the second position, and the duct 2 is connected to the fan inlet 313. The second damper 5 rotates to the fourth position, and the second damper 5 opens the exhaust port 16, so that the second outlet 3142 is connected to the first air outlet 111. At this time, driven by the second impeller 33, the outdoor airflow enters the second volute 312 through the duct 2 and the fan inlet 313, and then flows into the room through the second outlet 3142 of the second volute 312 and the first air outlet 111.

[0152] The fresh air module 100 of this embodiment is applicable to the fresh air module of a combined fresh air and duct air conditioning unit. It can switch between fresh air mode and exhaust mode through the joint operation of two dampers. Since only two dampers move during the switching process between fresh air mode and exhaust mode, the operation reliability is high. By designing the air duct and air pipe 2 inside the housing 1, the number of moving parts is greatly reduced. The addition of the exhaust mode expands the air handling function of the fresh air module 100.

[0153] The air conditioning device of this disclosure includes the fresh air module 100 described in any of the above embodiments.

[0154] Air conditioning equipment can be ducted air conditioners or other equipment with a fresh air module 100.

[0155] When installing the fresh air module 100, the cover plate 12 can be installed facing downwards, that is, the cover plate 12 is located on the lower side of the bottom shell 11 during installation, which makes it convenient to disassemble the cover plate 12 so as to repair or replace the components inside the shell 1.

[0156] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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. Therefore, they should not be construed as limitations on this disclosure.

[0157] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0158] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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 components; 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0159] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact 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.

[0160] In this disclosure, 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 disclosure. 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.

[0161] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A fresh air module, characterized in that, include: A housing, wherein the housing is provided with a first air vent; Air duct, which is connected to the housing; A fan having a fan inlet and a fan outlet, the fan being disposed within the housing, the fan being rotatable along a first direction and a second direction opposite to the first direction to switch between exhaust mode and fresh air mode; In the exhaust mode, the fan inlet is connected to the first air outlet, and the fan outlet is connected to the air duct; In the fresh air mode, the air duct is connected to the fan inlet, and the fan outlet is connected to the first air outlet.

2. The fresh air module according to claim 1, characterized in that, The fresh air module also includes a first air damper, which is movably connected to the air duct between a first position and a second position; In the exhaust mode, the first damper is located in the first position so that the fan outlet is connected to the duct. In the fresh air mode, the first air damper is located in the second position so that the air duct is connected to the fan inlet.

3. The fresh air module according to claim 2, characterized in that, The housing is provided with a second air outlet and a third air outlet, the second air outlet being connected to the fan outlet and the third air outlet being connected to the fan inlet; At the first position, the duct is connected to the second air outlet, so that the fan outlet is connected to the duct through the second air outlet; In the second position, the duct is connected to the third air outlet so that the duct is connected to the fan inlet through the third air outlet.

4. The fresh air module according to claim 3, characterized in that, The duct includes a first port, a second port, and a third port, wherein the second port is connected to the second air outlet, and the third port is connected to the third air outlet; At the first position, the first pipe opening is connected to the second pipe opening, and the first pipe opening is cut off from the third pipe opening; In the second position, the first port is connected to the third port, and the first port and the second port are disconnected.

5. The fresh air module according to claim 4, characterized in that, The air duct is provided with a first stop and a second stop; At the first position, the first damper abuts against the first abutment portion. In the second position, the first damper abuts against the second abutment portion.

6. The fresh air module according to claim 5, characterized in that, The first stop portion is disposed between the first pipe opening and the second pipe opening, and the second stop portion is disposed between the first pipe opening and the third pipe opening.

7. The fresh air module according to claim 2, characterized in that, The first damper is rotatably connected to the air duct.

8. The fresh air module according to claim 3, characterized in that, The second air vent and the third air vent are located on the same side of the housing.

9. The fresh air module according to claim 1, characterized in that, The housing is provided with a second damper, which is movably connected to the housing between a third position and a fourth position; In the exhaust mode, the second damper is located in the third position so that the fan inlet is connected to the first air outlet; In the fresh air mode, the second air damper is located in the fourth position so that the fan outlet is connected to the first air outlet.

10. The fresh air module according to claim 9, characterized in that, The housing is provided with an air inlet and an air outlet. The second damper is used to open one of the air inlet and the air outlet and to close the other of the air inlet and the air outlet. In the exhaust mode, the second damper opens the air inlet, and the fan inlet connects to the first air inlet through the air inlet; In the fresh air mode, the second air damper opens the exhaust port, and the fan outlet connects to the first air outlet through the exhaust port.

11. The fresh air module according to claim 10, characterized in that, The housing is provided with a third stop and a fourth stop; In the third position, the second damper abuts against the third abutment portion; In the fourth position, the second damper abuts against the fourth abutment portion.

12. The fresh air module according to claim 9, characterized in that, The second damper is rotatably connected to the housing.

13. The fresh air module according to any one of claims 1-12, characterized in that, The fan outlet includes a first outlet and a second outlet; In the exhaust mode, the first outlet is connected to the duct. In the fresh air mode, the second outlet is connected to the first air vent.

14. The fresh air module according to claim 13, characterized in that, In the exhaust mode, the first outlet is provided corresponding to the duct; and / or In the fresh air mode, the second outlet is set to correspond to the first air outlet.

15. The fresh air module according to claim 13, characterized in that, The fan includes a fan casing, a first impeller and a second impeller, the first impeller and the second impeller are stacked in the fan casing, the fan inlet, the first outlet and the second outlet are all located in the fan casing, the first outlet is located corresponding to the first impeller and the second outlet is located corresponding to the second impeller.

16. The fresh air module according to claim 15, characterized in that, The first impeller includes a first blade, and the second impeller includes a second blade, wherein the bending direction of the first blade is opposite to that of the second blade.

17. The fresh air module according to claim 15, characterized in that, The fan inlet is located on the same axial side of the first impeller and the second impeller.

18. The fresh air module according to claim 17, characterized in that, The fan also includes a motor, which is connected to both the first impeller and the second impeller to drive both impellers to rotate simultaneously. The motor is located on the side of the fan casing away from the fan inlet.

19. The fresh air module according to claim 15, characterized in that, The fan casing includes a first volute and a second volute, which are stacked together. The first impeller is disposed inside the first volute, the second impeller is disposed inside the second volute, the first outlet is disposed inside the first volute, and the second outlet is disposed inside the second volute.

20. The fresh air module according to any one of claims 1-12, characterized in that, The fresh air module also includes a filter device, which is located between the duct and the fan to filter the airflow flowing from the duct into the housing.

21. The fresh air module according to claim 20, characterized in that, The housing includes a bottom shell and a cover plate, the cover plate being detachably connected to the bottom shell, and the filter device being detachably connected to the bottom shell.

22. The fresh air module according to claim 21, characterized in that, The bottom shell has an opening, which is sealed by a cover plate, allowing the filter device to pass through.

23. The fresh air module according to claim 20, characterized in that, The filtration device includes a support and a filter screen, the support being connected to the housing, and the filter screen being detachably connected to the support.

24. The fresh air module according to any one of claims 1-12, characterized in that, The fan also includes an air guide ring, which is detachably located at the fan inlet.

25. The fresh air module according to any one of claims 1-12, characterized in that, The air duct and the first air outlet are located on different sides of the housing.

26. An air conditioning device, characterized in that, The fresh air module includes any one of claims 1-25.

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