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, air pipe and first air door, casing is equipped with first air port and second air port, fan is located in casing, fan is equipped with air inlet and air outlet passage, air pipe is connected with casing, air pipe is equipped with third air port, first air door is movably installed in casing, fresh air module is switchable between exhaust mode and fresh air mode, in exhaust mode, first air door cuts off between first air port and air outlet passage, second air port is communicated with air inlet, air outlet passage is communicated with third air port, in fresh air mode, first air door cuts off between air outlet passage and third air port, third air port is communicated with air inlet, air outlet passage is communicated with first air port.The air passage switching structure of the fresh air module of the utility model is simple in design, and easy to process and manufacture.

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 an indoor air inlet and an indoor air outlet to realize the dual functions of indoor air supply and exhaust. However, the internal air duct switching structure of the above-mentioned fresh air modules is complex in design and difficult to manufacture. 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 with a simple air duct switching structure design that is easy to process and manufacture.

[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, the housing having a first air outlet and a second air outlet; a fan, the fan being disposed inside the housing, the fan having an air inlet and an air outlet channel; an air duct, the air duct being connected to the housing, the air duct having a third air outlet; and a first damper, the first damper being movably installed inside the housing; the fresh air module is switchable between an exhaust mode and a fresh air mode. In the exhaust mode, the first damper cuts off the connection between the first air outlet and the air outlet channel, the second air outlet is connected to the air inlet, and the air outlet channel is connected to the third air outlet; in the fresh air mode, the first damper cuts off the connection between the air outlet channel and the third air outlet, the third air outlet is connected to the air inlet, and the air outlet channel is connected to the first air outlet.

[0007] According to the embodiment of the present invention, the fresh air module can cut off the connection between the first air outlet and the air outlet channel in exhaust mode, and connect the air outlet channel with the third air outlet; in fresh air mode, the first air outlet can cut off the connection between the air outlet channel and the third air outlet, and connect the air outlet channel with the first air outlet. Therefore, the fresh air module of the present invention can control the air outlet channel to connect with the first air outlet and the third air outlet respectively through the first air outlet, thereby reducing the number of air outlets controlled in the fresh air module, and the air duct switching structure design is simple and easy to process and manufacture.

[0008] In some embodiments, the fresh air module further includes a first driving component connected to the first damper for driving the first damper to rotate relative to the housing. Because the first driving component drives the first damper to rotate relative to the housing, the first damper can be automatically controlled by the first driving component, thereby improving the convenience of switching between different modes of the fresh air module. Furthermore, because the first driving component drives the first damper to rotate, the operation of the first damper is simple, requires less installation space, and is easy to manufacture.

[0009] In some embodiments, the air outlet duct includes a first sidewall and a second sidewall arranged opposite to each other, and the first air outlet includes a third sidewall and a fourth sidewall arranged opposite to each other. The first sidewall is connected to the third sidewall, and a first end of the first damper is rotatably connected to the fourth sidewall. In exhaust mode, a second end of the first damper is connected to one of the first sidewall and the third sidewall; in fresh air mode, a second end of the first damper is connected to the second sidewall. This simplifies the switching of the airflow path by the first damper, minimizes the impact on airflow resistance, and ensures reliable operation.

[0010] 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 second air outlet communicates with the air inlet through the air guide cavity. In the fresh air mode, the third 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.

[0011] In some embodiments, the fresh air module includes a second damper, which is movably installed within the duct. The duct has a first port and a second port, both of which engage with the housing. In exhaust mode, the second damper blocks the connection between the first port and the third port, and the third port communicates with the air outlet channel through the second port. In fresh air mode, the second damper blocks the connection between the second port and the third port, and the third port communicates with the air guide cavity through the first port. By placing the second damper within the duct, this embodiment of the fresh air module reduces the number of components within the housing compared to placing it within the housing, facilitating component arrangement. Furthermore, the second damper can cooperate with the first damper to control the exhaust and fresh air modes of the fresh air module, reducing the number of moving parts required and offering a simple and reliable implementation.

[0012] In some embodiments, the fresh air module includes a second drive component connected to the second damper for driving the second damper to rotate relative to the duct. The second damper is automatically controlled by the second drive component to improve the ease of switching between different modes of the fresh air module. Furthermore, since the second drive component drives the second damper to rotate, the operation of the second damper is simple, requires less installation space, and is easy to manufacture.

[0013] 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.

[0014] In some embodiments, the fresh air module includes a filter assembly disposed within at least one of the housing and the duct, and the filter assembly is arranged opposite to the first duct opening. Because the filter assembly is arranged opposite to the first duct opening, in fresh air mode, the air entering the housing through the third air inlet can be filtered by the filter assembly to ensure the cleanliness of the incoming indoor air.

[0015] 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 duct opening, the outer periphery of the first duct opening is located within the outer periphery of the filter element, or the outer periphery of the first duct opening coincides with the outer periphery of the filter element. Because 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 casing and remove the filter element from the filter bracket for easy removal and replacement, improving user convenience. Furthermore, since the outer periphery of the first duct opening is located within the outer periphery of the filter element, or the outer periphery of the first duct opening coincides with the outer periphery of the filter element, it can be ensured that all airflow entering the first duct opening can be filtered by the filter element, thereby improving the dust removal and antibacterial effect of the airflow and ensuring the cleanliness of the airflow.

[0016] In some embodiments, the fresh air module includes a second damper, which is movably installed within the housing. In the exhaust mode, a transition duct is formed between the first damper and the second damper, and the air outlet is connected to the third air inlet through the transition duct. In the fresh air mode, the second damper is spaced apart from either the fan or the housing, so that the third air inlet is connected to the air guide cavity. Because the second damper is movably installed within the housing, the components within the housing can be arranged compactly, reducing the space occupied by the fresh air module. Furthermore, the first and second dampers can work together to control the exhaust and fresh air modes of the fresh air module, simplifying the duct switching structure design and improving the air guiding effect.

[0017] In some embodiments, the air outlet duct includes a first sidewall and a second sidewall arranged opposite to each other. The first sidewall is connected to the first air outlet, and the second sidewall is spaced apart from the sidewall of the housing to form a ventilation opening. A first end of the second damper is rotatably connected to the sidewall of the housing. In the exhaust mode, the second end of the second damper overlaps with the second sidewall to close the ventilation opening. In the fresh air mode, the second end of the second damper is spaced apart from the second sidewall to open the ventilation opening. The fresh air module of this embodiment simplifies the operation of the second damper by rotatably connecting it to the sidewall of the housing, making manufacturing easier. Furthermore, in fresh air mode, the second damper can fit snugly against the sidewall of the housing, reducing airflow obstruction and improving the air delivery efficiency of the fresh air module.

[0018] In some embodiments, the air outlet duct includes a first sidewall and a second sidewall arranged opposite to each other. The first sidewall is connected to the first air outlet, and the second sidewall is spaced apart from the sidewall of the housing to form a ventilation opening. A first end of the second damper is rotatably connected to the second sidewall. In the exhaust mode, the second end of the second damper overlaps with the sidewall of the housing to close the ventilation opening. In the fresh air mode, the second end of the second damper is spaced apart from the sidewall of the housing to open the ventilation opening. The fresh air module of this embodiment simplifies the operation of the second damper by rotatably connecting it to the second sidewall of the fan, making manufacturing easier. Furthermore, during assembly, the second damper can be first assembled onto the fan, and then the entire module can be assembled into the housing, improving assembly efficiency.

[0019] In some embodiments, the fresh air module includes a filter assembly disposed on the outer wall of the fan and extending circumferentially along the air inlet. In fresh air mode, the airflow entering the air guide cavity through the third air inlet can be filtered by the filter assembly before entering the air inlet of the fan. Since the filter assembly extends circumferentially along the air inlet, the filter area of ​​the filter element can be increased, which is beneficial to improving the cleanliness of the filtered airflow.

[0020] In some embodiments, the filter assembly includes a guide ring with an air guide port, the fan includes a volute, the air inlet is disposed on the volute, the guide ring is detachably connected to the volute, and the air guide port is opposite to and communicates with the air inlet. The fresh air module of this embodiment improves the uniformity of airflow entering the volute by setting a guide ring at the air inlet position of the volute, and is beneficial to improving air intake efficiency. Since the guide ring is detachably connected to the volute, the volute can be separated from the filter assembly, thereby improving the convenience of disassembly and assembly of the filter assembly.

[0021] In some embodiments, the filter assembly includes a filter support and a filter element, the filter element being disposed on the filter support, and the filter support being integrally formed with the air guide ring. This reduces the number of parts during the assembly of the fresh air module, facilitating the assembly of the filter assembly. Furthermore, since the filter support and air guide ring are integrally formed, the connection strength between the filter support and the air guide ring is improved, resulting in better stability of the assembled filter assembly.

[0022] In some embodiments, the filter support has a mounting cavity extending circumferentially along the air duct. At least a portion of the filter element is mounted within the mounting cavity, and the filter element is detachable from the mounting cavity circumferentially along the air duct. This facilitates the installation and removal of the filter element and reduces the need for routine maintenance by the user. Furthermore, the constraint of the mounting cavity prevents the filter element from easily separating from the filter support due to vibration, handling, or other external forces, thus improving the reliability of the filter support and filter element installation.

[0023] In some embodiments, the fresh air module includes a third air damper, which is rotatably connected to the housing and can open and close the second air vent. When the fresh air module is in fresh air mode, the second air vent is deactivated and can be closed by the third air damper, allowing air to enter through the third air vent and exit through the first air vent. Additionally, when the fresh air module is in a shutdown state, the second air vent can be closed by the third air damper to prevent dust from entering the housing, thereby ensuring the cleanliness of the housing and extending the service life of the fresh air module.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] In the air conditioning device of this utility model embodiment, the first damper can cut off the connection between the first air outlet and the air outlet channel in exhaust mode, and connect the air outlet channel with the third air outlet; in fresh air mode, the first damper can cut off the connection between the air outlet channel and the third air outlet, and connect the air outlet channel with the first air outlet. Thus, the fresh air module of this utility model embodiment can control the air outlet channel to connect with the first air outlet and the third air outlet respectively through the first damper, thereby reducing the number of dampers controlled in the fresh air module. Moreover, the duct switching structure design is simple and easy to manufacture. Attached Figure Description

[0028] Figure 1 This is a perspective view of the fresh air module (in exhaust mode) according to an embodiment of this utility model.

[0029] Figure 2 This is a cross-sectional view of the fresh air module (in exhaust mode) according to an embodiment of this utility model.

[0030] Figure 3 This is a longitudinal cross-sectional view of the fresh air module (in exhaust mode) according to an embodiment of this utility model.

[0031] Figure 4 This is a perspective view of the fresh air module (in fresh air mode) according to an embodiment of this utility model.

[0032] Figure 5 This is a front view of the fresh air module (in fresh air mode) of this utility model embodiment with the cover plate removed.

[0033] Figure 6 This is a cross-sectional view of the fresh air module (in fresh air mode) according to an embodiment of this utility model.

[0034] Figure 7 This is a perspective view of a fresh air module (in exhaust mode) according to another embodiment of this utility model.

[0035] Figure 8 This is a cross-sectional view of a fresh air module (in exhaust mode) according to another embodiment of the present invention.

[0036] Figure 9 This is a longitudinal cross-sectional view of a fresh air module (in exhaust mode) according to another embodiment of this utility model.

[0037] Figure 10 This is a perspective view of a fresh air module (in fresh air mode) with the cover plate removed, according to another embodiment of this utility model.

[0038] Figure 11 This is a front view of a fresh air module (in fresh air mode) with the cover plate removed, according to another embodiment of this utility model.

[0039] Figure 12 This is a cross-sectional view of a fresh air module (in fresh air mode) according to another embodiment of the present invention.

[0040] Figure 13 This is a longitudinal cross-sectional view of a fresh air module (in fresh air mode) according to another embodiment of the present invention.

[0041] Figure 14 This is an exploded view of the filter component of the fresh air module according to an embodiment of this utility model.

[0042] Figure 15 This is a perspective view of the filter component of a fresh air module according to another embodiment of the present invention.

[0043] Figure 16 This is an exploded view of the filter component of a fresh air module according to another embodiment of the present invention.

[0044] Figure 17 This is a cross-sectional view of a fresh air module (in fresh air mode) according to another embodiment of this utility model.

[0045] Figure 18 This is a cross-sectional view of a fresh air module (in exhaust mode) according to another embodiment of this utility model.

[0046] Figure label:

[0047] 1. Casing; 11. Shell; 111. First air vent; 1111. Third side wall; 1112. Fourth side wall; 112. Second air vent; 113. Opening; 12. Cover plate; 13. Air guide cavity; 14. Adapter air duct; 15. Ventilation opening;

[0048] 2. Fan; 21. Volute; 211. Air outlet duct; 2111. First side wall; 2112. Second side wall; 212. Air inlet; 22. Impeller; 23. Impeller motor;

[0049] 3. Air duct; 31. Third air outlet; 32. First duct opening; 33. Second duct opening;

[0050] 41. First damper; 42. Second damper; 43. Third damper; 44. First drive unit; 45. Second drive unit;

[0051] 5. Filter assembly; 51. Filter bracket; 511. Mounting cavity; 52. Filter element; 53. Air guide ring; 531. Air vent. Detailed Implementation

[0052] 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.

[0053] The following is a reference appendix. Figures 1 to 18 This invention describes a fresh air module and an air conditioning device according to embodiments of the present invention.

[0054] like Figures 1 to 6 As shown, the fresh air module of this utility model embodiment includes: a housing 1, a fan 2, an air duct 3, and a first air damper 41. The housing 1 is provided with a first air outlet 111 and a second air outlet 112. The fan 2 is located inside the housing 1 and is provided with an air inlet 212 and an air outlet 211. The air duct 3 is connected to the housing 1 and is provided with a third air outlet 31. The first air damper 41 is movably installed inside the housing 1.

[0055] The fresh air module can switch between exhaust mode and fresh air mode. In exhaust mode, the first damper 41 cuts off the connection between the first air outlet 111 and the air outlet 211, the second air outlet 112 connects to the air inlet 212, and the air outlet 211 connects to the third air outlet 31. In fresh air mode, the first damper 41 cuts off the connection between the air outlet 211 and the third air outlet 31, the third air outlet 31 connects to the air inlet 212, and the air outlet 211 connects to the first air outlet 111.

[0056] It is understandable that, such as Figure 1 and Figure 2 As shown, in exhaust mode, the fresh air module draws in air through the second vent 112 and exhausts air through the third vent 31. Figure 4 and Figure 6 As shown, in the fresh air mode, the fresh air module has air intake at the third vent 31 and air outlet at the first vent 111.

[0057] According to the embodiment of the present invention, the fresh air module can cut off the connection between the first air outlet 111 and the air outlet channel 211 in exhaust mode, and connect the air outlet channel 211 to the third air outlet 31; in fresh air mode, the first air outlet 41 can cut off the connection between the air outlet channel 211 and the third air outlet 31, and connect the air outlet channel 211 to the first air outlet 111. Thus, the fresh air module of the embodiment of the present invention can control the air outlet channel 211 to connect with the first air outlet 111 and the third air outlet 31 respectively through the first air outlet 41, thereby reducing the number of air outlets controlled in the fresh air module, and the switching structure of the air duct is simple in design and easy to manufacture.

[0058] like Figure 11 and Figure 12 As shown, the fresh air module also includes a first drive component 44, which is connected to the first damper 41 and is used to drive the first damper 41 to rotate relative to the housing 1. For example, the first drive component 44 can be a motor. Since the first drive component 44 drives the first damper 41 to rotate relative to the housing 1, the first damper 41 can be automatically controlled by the first drive component 44, thereby improving the convenience of switching between different modes of the fresh air module. In addition, since the first drive component 44 drives the first damper 41 to rotate, the operation process of the first damper 41 is simple, the required installation space is small, and it is easy to manufacture.

[0059] Optionally, such as Figure 2 and Figure 6 As shown, the air outlet duct 211 includes a first sidewall 2111 and a second sidewall 2112 arranged opposite to each other, and the first air outlet 111 includes a third sidewall 1111 and a fourth sidewall 1112 arranged opposite to each other. The first sidewall 2111 is connected to the third sidewall 1111, and the first end of the first damper 41 is rotatably connected to the fourth sidewall 1112. Figure 2 As shown, in exhaust mode, the second end of the first damper 41 is connected to one of the first sidewall 2111 and the third sidewall 1111. Figure 6 As shown, in fresh air mode, the second end of the first air damper 41 is connected to the second side wall 2112.

[0060] It is understandable that the first end of the first damper 41 is the pivot position of the first damper 41, and the pivot axis of the first damper 41 is parallel to the axis of the air inlet 212. When the fresh air module switches modes, the first damper 41 can rotate about the first end of the first damper 41 as an axis. Figure 2 As shown, in exhaust mode, the second end of the first damper 41 is connected to one of the first side wall 2111 and the third side wall 1111, which can cut off the flow path between the first air outlet 111 and the air outlet channel 211, thereby realizing the function of air outlet channel 211 supplying air to the third air outlet 31.

[0061] In fresh air mode, such as Figure 6 As shown, the second end of the first damper 41 is connected to the second side wall 2112, and the second end of the first damper 41 is separated from the first side wall 2111 and the third side wall 1111, thereby connecting the air outlet 211 with the first air outlet 111 to realize the function of air outlet 211 supplying air to the first air outlet 111.

[0062] The fresh air module of this utility model adopts the above-described structure for the first air damper 41, which simplifies the way the first air damper 41 switches the air path, facilitates manufacturing, has little impact on the resistance of the air path, and is reliable in operation.

[0063] Optionally, such as Figure 2 and Figure 6 As shown, the outer wall of the fan 2 and the inner wall of the housing 1 define the air guide cavity 13. In exhaust mode, the second air outlet 112 is connected to the air inlet 212 through the air guide cavity 13. In fresh air mode, the third air outlet 31 is connected to the air inlet 212 through the air guide cavity 13. It can be understood that the fresh air module of this embodiment of the present invention uses the fan 2 and the housing 1 to form the air guide cavity 13, which simplifies the internal structure of the fresh air module and facilitates the switching between different modes, resulting in better performance.

[0064] Optionally, such as Figure 2 and Figure 6 As shown, the fresh air module includes a second damper 42, which is movably installed inside the air duct 3. The air duct 3 has a first port 32 and a second port 33, both of which are fitted into the housing 1. In exhaust mode, the second damper 42 cuts off the connection between the first port 32 and the third port 31, and the third port 31 is connected to the air outlet channel 211 through the second port 33. In fresh air mode, the second damper 42 cuts off the connection between the second port 33 and the third port 31, and the third port 31 is connected to the air guide cavity 13 through the first port 32.

[0065] It is understandable that the position of the second damper 42 relative to the duct 3 is different in different modes. The fresh air module of this embodiment of the present invention, by placing the second damper 42 inside the duct 3, can reduce the number of components inside the housing 1 compared to the solution of "placing the second damper 42 inside the housing 1", so as to facilitate the arrangement of components inside the housing 1.

[0066] like Figure 2 As shown, since the second damper 42 can cut off the airflow between the third air outlet 31 and the first duct outlet 32 ​​in exhaust mode, it can prevent airflow from flowing between the third air outlet 31 and the first duct outlet 32. Figure 6As shown, in fresh air mode, the second damper 42 can cut off the airflow between the third air outlet 31 and the second pipe opening 33, preventing airflow from passing between them. In this embodiment of the invention, the fresh air module, by setting the second damper 42, can cooperate with the first damper 41 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 two dampers mentioned above, thereby reducing the number of moving parts required, and the implementation is simple and reliable.

[0067] The fresh air module includes a second drive component 45, which is connected to a second damper 42. The second drive component 45 drives the second damper 42 to rotate relative to the duct 3. It is understood that the second damper 42 is automatically controlled by the second drive component 45 to improve the ease of switching between different modes of the fresh air module. Furthermore, because the second drive component 45 drives the second damper 42 to rotate, the operation of the second damper 42 is simple, requires less installation space, and is easy to manufacture.

[0068] For example, the second drive element 45 is a motor.

[0069] Optionally, such as Figure 2 and Figure 6 As shown, the first port 32 and the second port 33 are located on the same side of the housing 1. This allows for optimized design of the airflow within the housing 1 and the duct 3, facilitating the assembly of the duct 3 with the housing 1, and resulting in a compact structure that reduces the space occupied by the fresh air module.

[0070] In some embodiments, such as Figure 2 and Figure 6 As shown, the fresh air module includes a filter assembly 5, which is disposed in at least one of the housing 1 and the duct 3, and is arranged opposite to the first duct opening 32. Because the filter assembly 5 is arranged opposite to the first duct opening 32, in fresh air mode, the air entering the housing 1 through the third air inlet 31 can be filtered by the filter assembly 5 to ensure the cleanliness of the incoming indoor air.

[0071] 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.

[0072] like Figure 2 and Figure 14As 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 13, 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 13 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.

[0073] On a 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.

[0074] 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.

[0075] For example, such as Figure 14 As shown, the filter bracket 51 has an installation cavity 511 inside, and the filter element 52 is detachably installed in the installation cavity 511 of the filter bracket 51. The filter bracket 51 is snapped into the housing 1 to facilitate the installation and removal of the filter assembly 5.

[0076] In other embodiments, the fresh air module includes a second damper 42, which is movably mounted within the housing 1. For example... Figure 8 and Figure 9 As shown, in exhaust mode, a transition duct 14 is formed between the first damper 41 and the second damper 42, and the exhaust duct 211 is connected to the third air outlet 31 through the transition duct 14. Figure 11 and Figure 12 As shown, in the fresh air mode, the second damper 42 is spaced apart from either the fan 2 or the housing 1, so that the third air outlet 31 can communicate with the air guide cavity 13. Since the second damper 42 is movably installed inside the housing 1, the components inside the housing 1 can be arranged compactly, which helps to reduce the space occupied by the fresh air module. In addition, the first damper 41 and the second damper 42 can work together to control the exhaust and fresh air modes of the fresh air module, making the air duct switching structure design of the fresh air module simple and the air guiding effect good.

[0077] It is understandable that, such as Figure 9As shown, in exhaust mode, the first damper 41 blocks the first air outlet 111, the second damper 42 cuts off the connection between the third air outlet 31 and the air guide cavity 13, and the first damper 41 and the second damper 42 are arranged at intervals to form a transfer duct 14. The air outlet duct 211 is connected to the third air outlet 31 through the transfer duct 14 so as to exhaust the airflow of the fan 2 from the third air outlet 31, thereby realizing the exhaust function of the fresh air module.

[0078] like Figure 12 As shown, in the fresh air mode, the first damper 41 opens the first air outlet 111 and cuts off the connection between the air outlet 211 and the air guide cavity 13. The second damper 42 is in the open state and connects the third air outlet 31 with the air guide cavity 13, so that outside air enters the air inlet 212 of the fan 2 through the third air outlet 31 and the air guide cavity 13, and then is discharged through the air outlet 211 and the first air outlet 111 in sequence, thereby realizing the exhaust function of the fresh air module.

[0079] In one example, such as Figure 8 and Figure 12 As shown, the air outlet duct 211 includes a first sidewall 2111 and a second sidewall 2112 arranged opposite to each other. The first sidewall 2111 is connected to the first air outlet 111, and the second sidewall 2112 is spaced apart from the sidewall of the housing 1, forming a ventilation opening 15. The first end of the second damper 42 is rotatably connected to the sidewall of the housing 1. Figure 8 As shown, in exhaust mode, the second end of the second damper 42 overlaps with the second sidewall 2112 to seal the vent 15. Figure 9 As shown, in fresh air mode, the second end of the second air damper 42 is spaced apart from the second side wall 2112 to open the vent 15.

[0080] It is understandable that, such as Figure 8 and Figure 12 As shown, when the fresh air module switches between exhaust mode and fresh air mode, the second damper 42 rotates relative to the side wall of the housing 1 with its first end as a pivot, and the pivot axis of the second damper 42 is parallel to the axis of the air inlet 212. In exhaust mode, the second end of the second damper 42 can overlap with the second side wall 2112, thereby closing the vent 15 to prevent airflow in the exhaust channel 211 from entering the air guide cavity 13. In fresh air mode, the second end of the second damper 42 can open the vent 15 so that airflow entering the third air inlet 31 can enter the air guide cavity 13 through the vent 15, and at this time, the second damper 42 can fit against the side wall of the housing 1, thereby reducing the obstruction of airflow by the second damper 42.

[0081] The fresh air module of this utility model rotatably connects the second air damper 42 to the side wall of the housing 1, which simplifies the operation of the second air damper 42 and makes it easy to manufacture. In fresh air mode, the second air damper 42 can fit against the side wall of the housing 1 to reduce the obstruction of airflow by the second air damper 42, which is beneficial to improving the air delivery efficiency of the fresh air module.

[0082] In another example, such as Figure 17 and Figure 18 As shown, the air outlet duct 211 includes a first sidewall 2111 and a second sidewall 2112 arranged opposite to each other. The first sidewall 2111 is connected to the first air outlet 111, and the second sidewall 2112 is spaced apart from the sidewall of the housing 1, forming a ventilation opening 15. The first end of the second damper 42 is rotatably connected to the second sidewall 2112. Figure 18 As shown, in exhaust mode, the second end of the second damper 42 overlaps with the side wall of the casing 1 to close the vent 15. Figure 17 As shown, in fresh air mode, the second end of the second air damper 42 is spaced apart from the side wall of the housing 1 to open the vent 15.

[0083] Understandably, when the fresh air module switches between exhaust mode and fresh air mode, the second damper 42 rotates relative to the second side wall 2112 of the fan 2 with its first end as the pivot, and the pivot axis of the second damper 42 is parallel to the axis of the air inlet 212. In exhaust mode, the second end of the second damper 42 can overlap with the side wall of the housing 1, thereby closing the vent 15 to prevent airflow from the exhaust channel 211 from entering the air guide cavity 13. In fresh air mode, the second end of the second damper 42 can open the vent 15, allowing airflow entering the third air inlet 31 to enter the air guide cavity 13 through the vent 15.

[0084] The fresh air module of this utility model rotatably connects the second damper 42 to the second side wall 2112 of the fan 2, which makes the operation of the second damper 42 simple and easy to manufacture. Furthermore, when assembling the fresh air module, the second damper 42 can be assembled onto the fan 2 first, and then the whole module can be assembled into the housing 1, which helps to improve the assembly efficiency of the fresh air module.

[0085] Optionally, such as Figure 10 , Figure 15 and Figure 16 As shown, the fresh air module includes a filter assembly 5, which is located on the outer wall of the fan 2 and extends circumferentially along the air inlet 212. In fresh air mode, the airflow entering the air guide cavity 13 through the third air inlet 31 can be filtered by the filter assembly 5 before entering the air inlet 212 of the fan 2. Since the filter assembly 5 extends circumferentially along the air inlet 212, the filtration area of ​​the filter element 52 can be increased, which is beneficial to improving the cleanliness of the filtered airflow.

[0086] like Figure 10 , Figure 15 and Figure 16 As shown, the filter assembly 5 includes a guide ring 53 with an air guide port 531. The fan 2 includes a volute 21 with an air inlet 212 disposed on the volute 21. The guide ring 53 is detachably connected to the volute 21, and the air guide port 531 and the air inlet 212 are opposite to and communicate with each other. The fresh air module of this embodiment improves the uniformity of airflow entering the volute 21 by setting the guide ring 53 at the air inlet 212 position of the volute 21, and also improves the air intake efficiency. Since the guide ring 53 is detachably connected to the volute 21, the volute 21 can be separated from the filter assembly 5, thereby improving the convenience of assembling and disassembling the filter assembly 5.

[0087] Optionally, such as Figure 15 and Figure 16 As shown, the filter assembly 5 includes a filter bracket 51 and a filter element 52. The filter element 52 is mounted on the filter bracket 51, and the filter bracket 51 and the air guide ring 53 are integrally formed. This reduces the number of parts during the assembly of the fresh air module and facilitates the assembly of the filter assembly 5. In addition, since the filter bracket 51 and the air guide ring 53 are integrally formed, the connection strength between the filter bracket 51 and the air guide ring 53 can be improved, resulting in better stability of the assembled filter assembly 5.

[0088] Optionally, such as Figure 15 and Figure 16 As shown, the filter bracket 51 has a mounting cavity 511 extending circumferentially along the air guide 531. At least a portion of the filter element 52 is installed within the mounting cavity 511, and the filter element 52 can be dislodged from the mounting cavity 511 circumferentially along the air guide 531. This facilitates the installation and removal of the filter element 52 and enables convenient daily maintenance by the user. Furthermore, under the constraint of the mounting cavity 511, the filter element 52 is less likely to separate from the filter bracket 51 due to vibration, handling, or other external forces, which helps improve the reliability of the installation between the filter bracket 51 and the filter element 52.

[0089] For example, filter element 52 can be a HEPA filter.

[0090] Optionally, such as Figure 1 and Figure 9As shown, the fresh air module includes a third air damper 43, which is rotatably connected to the housing 1 and can open and close the second air vent 112. When the fresh air module is in fresh air mode, the second air vent 112 is deactivated and can be closed by the third air damper 43, allowing air to enter through the third air vent 31 and exit through the first air vent 111. When the fresh air module is in exhaust mode, the second air vent 112 is activated and can be opened by the third air damper 43, allowing air to enter through the second air vent 112 and exit through the third air vent 31. This facilitates control of the airflow path within the fresh air module and improves performance. Furthermore, when the fresh air module is in a shutdown state, the second air vent 112 can be closed by the third air damper 43 to prevent dust from entering the housing 1, thus ensuring the cleanliness of the housing 1 and extending the service life of the fresh air module.

[0091] The fresh air module also includes a third drive unit (not shown), which is connected to the third damper 43 and is used to drive the third damper 43 to rotate relative to the housing 1. For example, the third drive unit can be a motor. Since the third drive unit drives the third damper 43 to rotate relative to the housing 1, the third damper 43 can be automatically controlled by the third drive unit, thereby improving the convenience of switching between different modes of the fresh air module. In addition, since the third drive unit drives the third damper 43 to rotate, the operation process of the third damper 43 is simple, the required installation space is small, and the manufacturing process is convenient.

[0092] The housing 1 includes a shell 11 and a cover plate 12. The shell 11 has an opening 113 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 113, thus facilitating inspection or replacement of the filter element 52 within the housing 1. The actual performance is quite good.

[0093] Optionally, the fan 2 is a centrifugal fan 2. The fan 2 includes an impeller 22 and a volute 21. The impeller 22 is disposed inside the volute 21. The air inlet 212 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 211. When the impeller 22 rotates, it can introduce airflow from the air inlet 212 to the air outlet channel 211, thereby realizing airflow transmission and providing a good airflow guiding effect.

[0094] like Figure 3 As shown, the fan 2 also includes a fan motor 23. The fan motor 23 is located on the side of the volute 21 away from the air inlet 212, and the fan motor 23 is connected to the fan wheel 22. The fan motor 23 is used to drive the fan wheel 22 to rotate.

[0095] 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.

[0096] In the air conditioning device of this embodiment, the first damper 41 can cut off the connection between the first air outlet 111 and the air outlet 211 in exhaust mode, and the air outlet 211 is connected to the third air outlet 31; in fresh air mode, the first damper 41 can cut off the connection between the air outlet 211 and the third air outlet 31, and the air outlet 211 is connected to the first air outlet 111. Thus, the fresh air module of this embodiment can control the connection between the air outlet 211 and the first air outlet 111 and the third air outlet 31 respectively through the first damper 41, thereby reducing the number of dampers controlled in the fresh air module, and the duct switching structure design is simple and easy to manufacture.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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) and a second air vent (112); A fan (2) is installed inside the housing (1), and the fan (2) is provided with an air inlet (212) and an air outlet (211); Air duct (3), the air duct (3) is connected to the housing (1), and the air duct (3) is provided with a third air outlet (31); The first damper (41) is movably installed inside the housing (1); The fresh air module can be switched between exhaust mode and fresh air mode. In exhaust mode, the first air damper (41) cuts off the connection between the first air outlet (111) and the air outlet channel (211), the second air outlet (112) is connected to the air inlet (212), and the air outlet channel (211) is connected to the third air outlet (31). In the fresh air mode, the first air damper (41) cuts off the connection between the air outlet channel (211) and the third air outlet (31), the third air outlet (31) is connected to the air inlet (212), and the air outlet channel (211) is connected to the first air outlet (111).

2. The fresh air module according to claim 1, characterized in that, The fresh air module also includes a first drive component (44), which is connected to the first air damper (41) and is used to drive the first air damper (41) to rotate relative to the housing (1).

3. The fresh air module according to claim 2, characterized in that, The air outlet duct (211) includes a first sidewall (2111) and a second sidewall (2112) arranged opposite to each other. The first air outlet (111) includes a third sidewall (1111) and a fourth sidewall (1112) arranged opposite to each other. The first sidewall (2111) is connected to the third sidewall (1111). The first end of the first damper (41) is rotatably connected to the fourth sidewall (1112). In exhaust mode, the second end of the first damper (41) is connected to one of the first sidewall (2111) and the third sidewall (1111), and in fresh air mode, the second end of the first damper (41) is connected to the second sidewall (2112).

4. 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 (13). In the exhaust mode, the second air outlet (112) is connected to the air inlet (212) through the air guide cavity (13). In the fresh air mode, the third air outlet (31) is connected to the air inlet (212) through the air guide cavity (13).

5. The fresh air module according to claim 4, characterized in that, The fresh air module includes a second damper (42), which is movably installed inside the air duct (3). The air duct (3) is provided with 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 second damper (42) cuts off the connection between the first port (32) and the third air outlet (31). The third air outlet (31) is connected to the air outlet channel (211) through the second port (33). In the fresh air mode, the second damper (42) cuts off the connection between the second port (33) and the third air outlet (31). The third air outlet (31) is connected to the air guide cavity (13) through the first port (32).

6. The fresh air module according to claim 5, characterized in that, The fresh air module includes a second drive component (45), which is connected to the second damper (42) and is used to drive the second damper (42) to rotate relative to the air duct (3).

7. The fresh air module according to claim 5, characterized in that, The first port (32) and the second port (33) are located on the same side of the housing (1).

8. The fresh air module according to claim 5, characterized in that, The fresh air module includes a filter assembly (5), which is disposed in at least one of the housing (1) and the air duct (3), and the filter assembly (5) is arranged opposite to the first duct opening (32).

9. The fresh air module according to claim 8, 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 (13). 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).

10. The fresh air module according to claim 4, characterized in that, The fresh air module includes a second air damper (42), which is movably installed inside the housing (1). In the exhaust mode, a transition duct (14) is formed between the first air damper (41) and the second air damper (42). The air outlet channel (211) is connected to the third air outlet (31) through the transition duct (14). In the fresh air mode, the second air damper (42) is spaced apart from either the fan (2) or the housing (1) so that the third air outlet (31) is connected to the air guide cavity (13).

11. The fresh air module according to claim 10, characterized in that, The air outlet duct (211) includes a first sidewall (2111) and a second sidewall (2112) arranged opposite to each other. The first sidewall (2111) is connected to the first air outlet (111), and the second sidewall (2112) is spaced apart from the sidewall of the housing (1) and forms a ventilation opening (15). The first end of the second damper (42) is rotatably connected to the sidewall of the housing (1). In the exhaust mode, the second end of the second damper (42) overlaps with the second sidewall (2112) to close the vent (15). In the fresh air mode, the second end of the second damper (42) is spaced apart from the second sidewall (2112) to open the vent (15).

12. The fresh air module according to claim 10, characterized in that, The air outlet duct (211) includes a first sidewall (2111) and a second sidewall (2112) arranged opposite to each other. The first sidewall (2111) is connected to the first air outlet (111), and the second sidewall (2112) is spaced apart from the sidewall of the housing (1) and forms a ventilation opening (15). The first end of the second damper (42) is rotatably connected to the second sidewall (2112). In the exhaust mode, the second end of the second damper (42) overlaps with the side wall of the housing (1) to close the vent (15). In the fresh air mode, the second end of the second damper (42) is spaced apart from the side wall of the housing (1) to open the vent (15).

13. The fresh air module according to claim 10, characterized in that, The fresh air module includes a filter assembly (5), which is disposed on the outer wall of the fan (2) and extends circumferentially along the air inlet (212).

14. The fresh air module according to claim 13, characterized in that, The filter assembly (5) includes a flow guide ring (53) with an air guide port (531). The fan (2) includes a volute (21) with an air inlet (212) disposed on the volute (21). The flow guide ring (53) is detachably connected to the volute (21). The air guide port (531) is opposite to and communicates with the air inlet (212).

15. The fresh air module according to claim 14, characterized in that, The filter assembly (5) includes a filter bracket (51) and a filter element (52). The filter element (52) is disposed on the filter bracket (51). The filter bracket (51) and the flow guide ring (53) are integrally formed.

16. The fresh air module according to claim 15, characterized in that, The filter bracket (51) has an installation cavity (511) that extends circumferentially along the air duct (531). At least a portion of the filter element (52) is installed in the installation cavity (511), and the filter element (52) can be removed from the installation cavity (511) circumferentially along the air duct (531).

17. The fresh air module according to any one of claims 1-16, characterized in that, The fresh air module includes a third air damper (43), which is rotatably connected to the housing (1) and can open and close the second air vent (112).

18. The fresh air module according to any one of claims 1-16, characterized in that, The housing (1) includes a housing (11) and a cover plate (12). The housing (11) has an opening (113) on its lower side. The cover plate (12) blocks the opening (113) and is detachably connected to the housing (11).

19. The fresh air module according to any one of claims 1-16, 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 (212) 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 (211).

20. An air conditioning device, characterized in that, The fresh air module includes any one of claims 1-19.

Images