A fresh air device and a fresh air air conditioner having the same.

Abstract

This invention provides a fresh air device and a fresh air air conditioner having the same. The fresh air device includes a base and functional modules. The base forms a fresh air duct. Multiple functional modules are detachably installed within the fresh air duct, and different functional modules have different air handling functions. The corresponding functional modules can be installed within the fresh air duct according to the quality of the fresh air. It is easy to assemble and disassemble and has a wide range of applications. A first frame and a second frame are spaced apart along the direction of fresh air flow. Each frame is detachably equipped with a wet membrane. When the fresh air in the duct needs humidification, the wet membrane is placed on the corresponding frame. Fresh air can flow through the holes in the wet membrane, which humidifies the fresh air, resulting in sufficient humidification and uniform moisture distribution in the humidified fresh air, thus ensuring the humidity of the fresh air. When the fresh air in the duct does not need humidification, the wet membrane can be separated from the corresponding frame, reducing the impact of the wet membrane on the fresh air flow rate.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning equipment technology, and particularly relates to a fresh air device and a fresh air air conditioner having the same. Background Technology

[0002] With the continuous development of the air conditioning industry, air conditioners with ventilation and fresh air blowing functions have been introduced to the market. The fresh air unit of the air conditioner can introduce fresh outdoor air into the room, while the exhaust unit filters and discharges stale indoor air to the outside, thus completing the replacement of indoor air with fresh air. After heat exchange between the outdoor fresh air and the indoor stale air, the temperature of the incoming fresh air can be closer to the indoor temperature. In existing technologies, the filter is placed at the air inlet of the fresh air duct to filter the fresh air; the sterilization component is placed at the air outlet of the fresh air chamber to sterilize the fresh air; and the deodorizing component is placed at the air inlet of the indoor unit to deodorize the indoor air. These functional components are all located in different positions within the fresh air unit, resulting in a complex structure and large space occupation. Due to the unreasonable structural design, these functional components are inconvenient to disassemble and assemble, have a narrow range of applications, cannot be set according to actual needs, and have poor functional performance. Summary of the Invention

[0003] In view of this, the present invention provides a fresh air device and a fresh air air conditioner having the same, to solve the problems of inconvenient disassembly and assembly of functional components, narrow application range, and complex structure of fresh air devices caused by different functional components being set in different positions in the prior art.

[0004] This invention provides a fresh air device, including a base and functional modules. The base forms a fresh air duct. The functional modules are detachably disposed within the fresh air duct, and there are multiple functional modules, with different functional modules having different air treatment functions. The air treatment functions include humidification, sterilization, filtration, deodorization, and fragrance enhancement.

[0005] The corresponding functional modules can be set in the fresh air duct according to the quality of the fresh air in the fresh air duct.

[0006] Further optionally, the functional module is a humidification module, the humidification module includes a humidification rack, the wet film is detachably mounted on the humidification rack and the wet film has wet film holes, the wet film holes are connected to the fresh air duct;

[0007] When the fresh air in the fresh air duct flows through the holes of the wet membrane, the wet membrane can humidify the fresh air.

[0008] Further optionally, the humidifier rack includes a first frame and a second frame, which are spaced apart along the direction of fresh air flow; the wet film includes a first wet film and a second wet film, which are detachably mounted on the first frame and detachably mounted on the second frame; the first wet film and the second wet film have the same or different humidification levels;

[0009] When the fresh air in the fresh air duct needs to be humidified, the wet membrane is placed on the corresponding frame, and the fresh air in the fresh air duct can flow through the wet membrane holes of the first wet membrane and the second wet membrane in sequence; when the fresh air in the fresh air duct does not need to be humidified, the wet membrane is separated from the corresponding frame.

[0010] Further optionally, the humidifier rack also includes a humidifier rack body, wherein both the first rack body and the second rack body are rotatably mounted on the humidifier rack body;

[0011] Based on the quality of fresh air in the fresh air duct, the tilt angles of the first frame and the second frame are adjusted, thereby adjusting the orientation of the wet membrane holes of the first wet membrane and the second wet membrane.

[0012] Optionally, the humidification module further includes a spray assembly detachably mounted on the humidification frame. The spray assembly includes a spray element located between the first frame and the second frame, and the spray element has a first spray hole and a second spray hole arranged opposite to each other. The atomized water sprayed from the first spray hole can flow to and wet the first wet film, and the atomized water sprayed from the second spray hole can flow to and wet the second wet film.

[0013] Optionally, the spray assembly further includes a spray frame, and the spray element is rotatably mounted on the spray frame; the spray element has a tubular structure and the extension direction of the spray element is perpendicular to the extension direction of the fresh air duct; the spray element includes a first spray wall and a second spray wall arranged opposite to each other along the flow direction of the fresh air, the first spray wall having a plurality of first spray holes, the plurality of first spray holes being spaced apart along the extension direction of the first spray wall; the second spray wall having a plurality of second spray holes, the plurality of second spray holes being spaced apart along the extension direction of the second spray wall;

[0014] When the first wet film and the second wet film need to be wetted, the spraying member is rotated so that the water sprayed from the first spray hole covers the first wet film and the water sprayed from the second spray hole covers the second wet film.

[0015] Further optionally, the spray assembly further includes a water collection tank, a water storage tank, a pump, and a water inlet pipe; the water collection tank is disposed on the spray frame and located below the spray component; the first frame and the second frame are inclined so that when the spray assembly is disposed on the humidification frame, the water on the first wet film and the water on the second wet film can flow to the water collection tank;

[0016] The water storage tank, pump, and inlet pipe are mounted on the spray frame and connected in sequence with the spray components.

[0017] Optionally, the spray element includes a first spray pipe and a second spray pipe, the first spray pipe and the second spray pipe being telescopically sleeved together, and the diameter of the first spray pipe being smaller than the diameter of the second spray pipe; the first spray pipe is formed with a first spray nozzle A and a first spray nozzle B arranged opposite to each other along the direction of fresh air flow, and each of the first spray nozzle A and the first spray nozzle B includes multiple nozzles; the second spray pipe is formed with a second spray nozzle A and a second spray nozzle B arranged opposite to each other along the direction of fresh air flow, and each of the second spray nozzle A and the second spray nozzle B includes multiple nozzles.

[0018] By adjusting the positions between the first and second spray pipes, the first spray nozzle A can be connected to the second spray nozzle A, and the first spray nozzle B can be connected to the second spray nozzle B. The flow area between the first spray nozzle A and the second spray nozzle A, and the flow area between the first spray nozzle B and the second spray nozzle B can also be adjusted.

[0019] By adjusting the position between the first spray pipe and the second spray pipe, a portion of the water can be sprayed out from the first spray nozzle A and the first spray nozzle B of the first spray pipe, while another portion of the water can be sprayed out from the second spray nozzle A and the second spray nozzle B of the second spray pipe.

[0020] Optionally, the spray assembly further includes a spray frame, the spray element is rotatably mounted on the spray frame and the spray element has a flat structure; the spray element includes a first spray wall and a second spray wall, the first spray wall has a plurality of first spray holes, the plurality of first spray holes are spaced apart along the extending direction of the first spray wall; the second spray wall has a plurality of second spray holes, the plurality of second spray holes are spaced apart along the extending direction of the second spray wall;

[0021] When the first and second wet films need to be wetted, the spray element is rotated so that the first spray wall faces the first wet film, and the water sprayed from the first spray hole can cover the first wet film. The second spray wall is then rotated so that the water sprayed from the second spray hole can cover the second wet film. When the first and second wet films do not need to be wetted, the spray element is rotated so that the plane of the first spray wall and the plane of the second spray wall are parallel to the direction of the fresh air flow.

[0022] The present invention also provides a fresh air air conditioner, including the fresh air device described in any of the above claims; the fresh air device further includes a filter and a heat exchanger; the filter, heat exchanger and functional module are sequentially arranged in the fresh air duct along the flow direction of the fresh air, and the functional module is close to the air outlet of the fresh air duct; the heat exchanger forms a first heat exchange duct and a second heat exchange duct arranged in an alternating manner.

[0023] Outdoor fresh air enters the fresh air duct and flows sequentially through the filter, the first heat exchange duct, and the functional module. Indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct.

[0024] Compared with the prior art, the main advantages of the present invention are as follows:

[0025] (1) The functional modules are detachably installed in the fresh air duct. According to the fresh air quality in the fresh air duct, the corresponding functional modules can be installed in the fresh air duct to achieve humidification, sterilization, filtration, deodorization and fragrance enhancement. The fresh air device has a simple structure, is easy to disassemble and assemble and has a wide range of applications.

[0026] (2) The first frame and the second frame are set at intervals along the direction of fresh air flow. Each frame is equipped with a detachable wet membrane. These wet membranes have the same or different humidification levels. When the fresh air in the fresh air duct needs to be humidified, the wet membrane is set on the corresponding frame. The fresh air can flow through the wet membrane holes. The wet membrane humidifies the fresh air, and the humidification is sufficient and the moisture in the humidified fresh air is evenly distributed. The humidification effect is obvious and the humidity of the fresh air is guaranteed. When the fresh air in the fresh air duct does not need to be humidified, the wet membrane can be separated from the corresponding frame to reduce the impact of the wet membrane on the fresh air flow.

[0027] (3) The spray assembly is detachably mounted on the humidification rack. When the fresh air in the fresh air duct does not need to be humidified, the spray assembly can be separated from the humidification rack. The spray element is rotatably mounted on the spray rack. When the wet film needs to be wetted, the spray element rotates so that the water sprayed by the spray element covers the wet film, which is sufficient and effective, ensuring the subsequent humidification effect.

[0028] (4) When the humidification module is applied to the fresh air air conditioner, it monitors the quality of fresh air in the fresh air duct in real time, and then removes and installs the wet film. The wet film is wetted to different degrees through the spray component, and then the fresh air is humidified to different degrees to meet different humidification needs. The wet film wetting degree is matched with the fresh air quality, which improves the air humidification accuracy. The fresh air device and the fresh air air conditioner are linked for control, which optimizes the control method of the fresh air air conditioner. Attached Figure Description

[0029] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0030] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0031] Figure 1a and Figure 1b This is a schematic diagram of the structure of an embodiment of the humidification module provided by the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a wet film embodiment provided by the present invention;

[0033] Figure 3a This is a schematic diagram of the structure of an embodiment of the humidifier rack provided by the present invention;

[0034] Figure 3b A schematic diagram of the structure of an embodiment of the water storage tank provided by the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of an embodiment of the spray assembly provided by the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of an embodiment of the spray component provided by the present invention;

[0037] Figure 6a and Figure 6b This is a schematic diagram of the assembly structure of an embodiment of the fresh air device provided by the present invention;

[0038] Figure 7 This is an exploded structural diagram of an embodiment of the fresh air device provided by the present invention;

[0039] In the picture:

[0040] 1-Humidification module; 11-Humidification rack; 111-First rack; 112-Second rack; 12-Wet film; 121-First wet film; 122-Second wet film; 13-Sprayer component; 131-First spray hole; 132-Second spray hole; 14-Sprayer rack; 15-Water storage tank;

[0041] 2-Fresh air unit; 21-Mask; 22-Base; 221-Humidification module mounting position; 222-Heat exchange component mounting position; 223-Filter mounting position; 23-Heat exchange component; 241-Fresh air volute assembly; 242-Fresh air fan blade; 251-Dull air volute assembly; 252-Dull air fan blade; 26-Fan blade motor; 27-Fresh air electrical box; 28-Filter. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0044] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0045] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0046] In existing fresh air conditioning systems, the filter is placed at the air inlet of the fresh air duct to filter the fresh air; the sterilization component is placed at the air outlet of the fresh air chamber to sterilize the fresh air; and the deodorization component is placed at the air inlet of the indoor unit to remove odors from the indoor air. These functional components are placed in different locations within the fresh air system, resulting in a complex structure and large space occupation. Due to the unreasonable structural design, these functional components are inconvenient to disassemble and assemble, have a narrow range of applications, cannot be set according to actual needs, and have poor functional performance.

[0047] This invention creatively provides a fresh air device, including a base and functional modules. The base forms a fresh air duct. The functional modules are detachably installed in the fresh air duct, and there are multiple functional modules. Different functional modules have different air treatment functions. The air treatment functions include humidification, sterilization, filtration, deodorization, and fragrance enhancement. The corresponding functional modules can be installed in the fresh air duct according to the quality of the fresh air. The fresh air device has a simple structure, is easy to assemble and disassemble, and has a wide range of applications.

[0048] Example 1

[0049] <Fresh Air System>

[0050] This embodiment provides a fresh air device 2, which includes a base 22 and functional modules. The base 22 forms a fresh air duct. The functional modules are detachably installed in the fresh air duct, and there are multiple functional modules. Different functional modules have different air handling functions. The air handling functions include humidification, sterilization, filtration, deodorization, and fragrance enhancement.

[0051] Based on the quality of the fresh air in the fresh air duct, the corresponding functional modules can be set in the fresh air duct. Specifically, when the fresh air in the fresh air duct needs to be humidified, a module with humidification function is set in the fresh air duct; when the fresh air in the fresh air duct needs to be sterilized, a module with sterilization function is set in the fresh air duct.

[0052] Furthermore, such as Figure 1a , Figure 1b and Figure 2 As shown, the functional module is humidification module 1, which includes a humidification rack 11. A wet membrane 12 is detachably mounted on the humidification rack 11 and has wet membrane holes that are connected to the fresh air duct. The wet membrane 12 allows fresh air to flow through but does not allow water to flow through.

[0053] When the fresh air in the fresh air duct needs to be humidified, the wet membrane 12 is placed on the humidification rack 11. When the fresh air in the fresh air duct flows through the holes of the wet membrane, the wet membrane 12 can humidify the fresh air, ensure the humidity of the fresh air, and reduce the impact of the fresh air on the indoor air. When the fresh air in the fresh air duct does not need to be humidified, the wet membrane 12 is separated from the humidification rack 11 to reduce the impact of the wet membrane 12 on the fresh air flow.

[0054] To address the issues of uneven moisture distribution in the humidified fresh air and the humidification replenishment membrane 12, this embodiment proposes, as follows: Figure 3a As shown, the humidifier rack 11 includes a first frame 111 and a second frame 112, which are spaced apart along the direction of fresh air flow; the wet membrane 12 includes a first wet membrane 121 and a second wet membrane 122, which are detachably mounted on the first frame 111 and the second wet membrane 122 are detachably mounted on the second frame 112; the first wet membrane 121 and the second wet membrane 122 have the same or different humidification levels; wet membranes 12 with the same humidification level can be made of the same material, while wet membranes 12 with different humidification levels can be made of different materials or have different pore sizes and pore distribution densities;

[0055] When the fresh air in the fresh air duct needs humidification, the wet membrane 12 is placed on the corresponding frame. The fresh air in the fresh air duct can flow through the wet membrane holes of the first wet membrane 121 and the second wet membrane 122 in sequence. The water on the wet membrane 12 evaporates into water vapor and mixes with the fresh air, thus humidifying the fresh air. The humidification is sufficient and the moisture distribution in the humidified fresh air is uniform, resulting in a significant humidification effect and ensuring the humidity of the fresh air. When the fresh air in the fresh air duct does not need humidification, the wet membrane 12 is separated from the corresponding frame to reduce the flow resistance of the fresh air and increase the fresh air flow rate.

[0056] To address the problem in existing technologies where the wet membrane 12 needs to be disassembled for wetting, resulting in a complex wetting process, this embodiment proposes, as follows: Figure 4 and Figure 5 As shown, the humidification module 1 also includes a spray assembly, which is detachably mounted on the humidification frame 11. The spray assembly includes a spray element 13, which is located between the first frame 111 and the second frame 112. The spray element 13 has a first spray hole 131 and a second spray hole 132 that are arranged opposite to each other. The atomized water sprayed from the first spray hole 131 can flow to and wet the first wet film 121, and the atomized water sprayed from the second spray hole 132 can flow to and wet the second wet film 122.

[0057] When the fresh air in the fresh air duct does not need to be humidified, the spray assembly can be separated from the humidification rack 11; the spray element 13 is rotatably mounted on the spray rack 14. When the wet film 12 needs to be wetted, the spray assembly is mounted on the humidification rack 11, and the wet film 12 is wetted by the spray element 13.

[0058] To address the issue of insufficient wetting of the wet film 12 by the spray element 13, this embodiment proposes that the spray assembly further includes a spray frame 14, on which the spray element 13 is rotatably mounted; the spray element 13 has a tubular structure and its extension direction is perpendicular to the extension direction of the fresh air duct; the spray element 13 includes a first spray wall and a second spray wall arranged opposite to each other along the flow direction of the fresh air, the first spray wall forming a plurality of first spray holes 131, which are spaced apart along the extension direction of the first spray wall; the second spray wall forming a plurality of second spray holes 132, which are spaced apart along the extension direction of the second spray wall.

[0059] When the first wet film 121 and the second wet film 122 need to be wetted, the spray element 13 is rotated so that the water sprayed from the first spray hole 131 covers the first wet film 121 and the water sprayed from the second spray hole 132 covers the second wet film 122; the wetting is sufficient and the effect is obvious, ensuring the subsequent humidification effect.

[0060] Specifically, the spray element 13 has an annular groove, and the spray frame 14 has an annular slide rail. The annular slide rail is embedded in the annular groove, allowing the spray element 13 to rotate relative to the spray frame 14. The humidification module 1 also includes a drive motor and a transmission mechanism. The transmission mechanism includes an annular rack and a gear. The annular rack is located at the end of the spray element 13 away from the fresh air duct. The gear meshes with the annular rack and is connected to the drive motor for driving.

[0061] When the wet film 12 needs to be wetted, the drive motor drives the gear to rotate, which in turn drives the ring rack to rotate the spraying component 13 relative to the spraying frame 14, thereby achieving the wetting of the wet film 12. The degree of wetting of the wet film 12 can be adjusted by adjusting the rotation speed of the spraying component 13.

[0062] like Figure 1a , Figure 1b and Figure 3b As shown, the spray assembly also includes a water collection tank, a water storage tank 15, a pump, and a water inlet pipe; the water collection tank is installed on the spray frame 14 and located below the spray element 13; the first frame 111 and the second frame 112 are inclined so that when the spray assembly is installed on the humidifying frame 11, the water on the first wet film 121 and the water on the second wet film 122 can flow to the water collection tank, preventing water from accumulating inside the humidifying shell;

[0063] The water storage tank 15, pump, and inlet pipe are installed on the spray frame 14 and are connected to the spray element 13 in sequence. Under the action of the pump, the water in the water storage tank 15 enters the spray element 13 through the inlet pipe. Then, the water is sprayed from the first spray hole 131 to the first wet film 121 and from the second spray hole 132 to the second wet film 122. Water can be added to the water storage tank 15 from the outside. Alternatively, the water storage tank 15 is connected to the water collection tank, and water can be supplied from the water collection tank to the water storage tank 15. Alternatively, the water storage tank 15 can collect the condensate generated by the evaporator in the indoor unit. Alternatively, the water storage tank 15 can collect the condensate generated by the heat exchange element.

[0064] <Fresh Air Conditioner>

[0065] like Figure 6a , Figure 6b and Figure 7 As shown, this embodiment also provides a fresh air conditioner, including any of the fresh air devices described above; the fresh air device 2 further includes a heat exchanger 23, a filter 28, a fresh air volute assembly 241, a fresh air fan blade 242, a turbid air volute assembly 251, a turbid air fan blade 252, and a fan motor 26. The base 22 includes a base body, and the base body forms a fresh air duct. The fresh air duct has a filter mounting position 223, a heat exchanger mounting position 222, and a humidification module mounting position 221 sequentially formed along the fresh air flow direction. The humidification module mounting position 221 is close to the air outlet end of the fresh air duct. The filter 28 is disposed at the filter mounting position 223, the humidification module 1 is disposed at the humidification module mounting position 221, and the heat exchanger 23 is disposed at the heat exchanger mounting position 222. The heat exchanger 23 forms a first heat exchange duct and a second heat exchange duct that are arranged in an alternating manner.

[0066] At the bottom of the base body, a fresh air volute assembly 241 and a stale air volute assembly 251 are arranged side by side. The fresh air volute assembly 241 includes a fresh air volute and a fresh air volute cover, which are fastened together to form a fresh air cavity. The fresh air cavity has a fresh air cavity inlet and a fresh air cavity outlet. The air inlet of the fresh air duct is connected to the outside through a fresh air pipe and to the air inlet of the first heat exchange duct. The fresh air cavity inlet and the air outlet of the first heat exchange duct are connected through a humidification module 1, and the fresh air cavity outlet is connected to the indoor environment. The stale air volute assembly... Component 251 includes a turbid air volute and a turbid air volute cover, which are fastened together to form a turbid air cavity. The turbid air cavity has a turbid air cavity inlet and a turbid air cavity outlet. The air inlet of the second heat exchange air duct is connected to the room, and the air outlet of the second heat exchange air duct is connected to the turbid air cavity inlet. The turbid air cavity outlet is connected to the outside through an exhaust pipe. A fresh air fan blade 242 is installed in the fresh air cavity, and a turbid air fan blade 252 is installed in the turbid air cavity. A fan blade motor 26 is installed between the fresh air volute assembly 241 and the turbid air volute assembly 251.

[0067] Outdoor fresh air enters the fresh air duct through the fresh air duct and flows sequentially through the filter screen 28, the first heat exchange duct and the humidification module 1, and then enters the fresh air chamber and is discharged into the room; when flowing through the wet membrane 12, the fresh air is humidified; indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct, and then enters the stale air chamber and is discharged to the outside through the exhaust duct.

[0068] The fresh air unit 2 also includes a detection element and a fresh air electrical box 27. The detection element is used to detect the quality of fresh air. The fresh air electrical box 27 is equipped with a fresh air control board. The fresh air control board is electrically connected to the detection element, the fan motor 26, and the drive motor. The detection element detects the quality of fresh air and transmits the detection data to the fresh air control board. The fresh air control board controls the drive motor to run according to the quality of fresh air, thereby causing the spray element to rotate to humidify the wet film. The fresh air control board controls the fan motor 26 to run, causing the fresh air fan blade 242 and the stale air fan blade 252 to rotate, thereby introducing outdoor fresh air into the room and exhausting indoor stale air to the outside.

[0069] The fresh air device 2 also includes a mask 21, a base 22, a fresh air volute assembly 241, a fresh air fan blade 242, a turbid air volute assembly 251, a turbid air fan blade 252, and a fan motor 26, all of which are installed inside the mask 21.

[0070] Example 2

[0071] Unlike Embodiment 1, the humidifier rack 11 also includes a humidifier rack body, and the first rack body 111 and the second rack body 112 are rotatably mounted on the humidifier rack body;

[0072] Based on the quality of fresh air in the fresh air duct, the tilt angles of the first frame 111 and the second frame 112 are adjusted, thereby adjusting the orientation of the wet film holes of the first wet film 121 and the second wet film holes of the second wet film 122. While humidifying the fresh air, the flow rate of the fresh air can be adjusted so that the humidity and flow rate of the fresh air are adapted to the actual needs.

[0073] Example 3

[0074] Unlike Embodiment 1, the spray element 13 includes a first spray pipe and a second spray pipe, which are telescopically sleeved together, and the diameter of the first spray pipe is smaller than that of the second spray pipe; the first spray pipe has a first spray nozzle A and a first spray nozzle B arranged opposite to each other along the direction of fresh air flow, and there are multiple first spray nozzles A and B; the second spray pipe has a second spray nozzle A and a second spray nozzle B arranged opposite to each other along the direction of fresh air flow, and there are multiple second spray nozzles A and B.

[0075] By adjusting the positions of the first and second spray pipes, the first spray nozzle A can be connected to the second spray nozzle A, and the first spray nozzle B can be connected to the second spray nozzle B. The flow area between the first spray nozzle A and the second spray nozzle A, and the flow area between the first spray nozzle B and the second spray nozzle B can also be adjusted.

[0076] By adjusting the position between the first spray pipe and the second spray pipe, some water can be sprayed out from the first spray nozzle A and the first spray nozzle B of the first spray pipe, while other water can be sprayed out from the second spray nozzle A and the second spray nozzle B of the second spray pipe; thus, the wet film can achieve different degrees of wetting and the wetting accuracy can be improved.

[0077] Example 4

[0078] Unlike Embodiment 1, the spray assembly also includes a spray frame 14, and the spray element 13 is rotatably mounted on the spray frame 14 and has a flat structure. The spray element 13 includes a first spray wall and a second spray wall. The first spray wall forms a plurality of first spray holes, which are spaced apart along the extension direction of the first spray wall. The second spray wall forms a plurality of second spray holes, which are spaced apart along the extension direction of the second spray wall.

[0079] When the first and second wet films need wetting, the spray element 13 is rotated so that the first spray wall faces the first wet film 121, and the water sprayed from the first spray hole can cover the first wet film 121. The second spray wall faces the second wet film 122, and the water sprayed from the second spray hole can cover the second wet film 122, resulting in sufficient wetting and high wetting accuracy. When the first wet film 121 and the second wet film 122 do not need wetting, the spray element 13 is rotated so that the plane of the first spray wall and the plane of the second spray wall are parallel to the direction of fresh air flow, reducing the influence of the spray element 13 on the fresh air flow.

[0080] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A fresh air device, characterized in that, The fresh air device includes a base and functional modules. The base forms a fresh air duct. The functional modules are detachably installed in the fresh air duct, and there are multiple functional modules. Different functional modules have different air handling functions. The air handling functions include humidification, sterilization, filtration, deodorization, and fragrance enhancement. The corresponding functional modules can be installed in the fresh air duct according to the quality of the fresh air. The functional module is a humidification module, which includes a humidification frame and a wet membrane. The humidification frame includes a first frame and a second frame spaced apart along the direction of fresh air flow. The wet membrane includes a first wet membrane detachably mounted on the first frame and a second wet membrane detachably mounted on the second frame. Both the first and second wet membranes have wet membrane holes that communicate with the fresh air duct. When fresh air flows through the wet membrane holes in the fresh air duct, the wet membrane can humidify the fresh air. The humidification module further includes a spray assembly, which is detachably mounted on the humidification frame. The spray assembly includes a spray element and a spray frame. The spray element is located between the first frame and the second frame and is rotatably mounted on the spray frame. The spray element includes a first spray wall and a second spray wall arranged opposite each other along the direction of fresh air flow. The first spray wall has a plurality of first spray holes, and the second spray wall has a plurality of second spray holes. When the first wet film and the second wet film need to be wetted, the spray element is rotated so that the water sprayed from the first spray holes covers the first wet film, and the water sprayed from the second spray holes covers the second wet film.

2. The fresh air device according to claim 1, characterized in that, The first wet film and the second wet film have the same or different humidification levels; When the fresh air in the fresh air duct needs to be humidified, the wet membrane is placed on the corresponding frame, and the fresh air in the fresh air duct can flow through the wet membrane holes of the first wet membrane and the second wet membrane in sequence; when the fresh air in the fresh air duct does not need to be humidified, the wet membrane is separated from the corresponding frame.

3. The fresh air device according to claim 2, characterized in that, The humidifier rack also includes a humidifier rack body, and both the first rack body and the second rack body are rotatably mounted on the humidifier rack body; Based on the quality of fresh air in the fresh air duct, the tilt angles of the first frame and the second frame are adjusted, thereby adjusting the orientation of the wet membrane holes of the first wet membrane and the second wet membrane.

4. The fresh air device according to claim 3, characterized in that, The spray element is a tubular structure and its extension direction is perpendicular to the extension direction of the fresh air duct; a plurality of first spray holes are spaced apart along the extension direction of the first spray wall, and a plurality of second spray holes are spaced apart along the extension direction of the second spray wall.

5. The fresh air device according to claim 4, characterized in that, The spray assembly further includes a water collection tank, a water storage tank, a pump, and a water inlet pipe; the water collection tank is disposed on the spray frame and located below the spray element; the first frame and the second frame are inclined so that when the spray assembly is disposed on the humidification frame, the water on the first wet film and the water on the second wet film can flow to the water collection tank; the water storage tank, the pump, and the water inlet pipe are disposed on the spray frame and are sequentially connected to the spray element.

6. The fresh air device according to claim 3, characterized in that, The spray system includes a first spray pipe and a second spray pipe, which are telescopically sleeved together, with the diameter of the first spray pipe being smaller than that of the second spray pipe. The first spray pipe has a first spray nozzle A and a first spray nozzle B arranged opposite to each other along the direction of fresh air flow, and each of the first spray nozzle A and the first spray nozzle B includes multiple nozzles. The second spray pipe has a second spray nozzle A and a second spray nozzle B arranged opposite to each other along the direction of fresh air flow, and each of the second spray nozzle A and the second spray nozzle B includes multiple nozzles. By adjusting the positions between the first and second spray pipes, the first spray nozzle A can be connected to the second spray nozzle A, and the first spray nozzle B can be connected to the second spray nozzle B. The flow area between the first spray nozzle A and the second spray nozzle A, and the flow area between the first spray nozzle B and the second spray nozzle B can also be adjusted. By adjusting the position between the first spray pipe and the second spray pipe, a portion of the water can be sprayed out from the first spray nozzle A and the first spray nozzle B of the first spray pipe, while another portion of the water can be sprayed out from the second spray nozzle A and the second spray nozzle B of the second spray pipe.

7. The fresh air device according to claim 3, characterized in that, The spray assembly further includes a spray frame, and the spray element is rotatably mounted on the spray frame and has a flat structure; the spray element includes a first spray wall and a second spray wall, the first spray wall having a plurality of first spray holes, the plurality of first spray holes being spaced apart along the extending direction of the first spray wall; the second spray wall having a plurality of second spray holes, the plurality of second spray holes being spaced apart along the extending direction of the second spray wall; When the first and second wet films need to be wetted, the spray element is rotated so that the first spray wall faces the first wet film, and the water sprayed from the first spray hole can cover the first wet film. The second spray wall is then rotated so that the water sprayed from the second spray hole can cover the second wet film. When the first and second wet films do not need to be wetted, the spray element is rotated so that the plane of the first spray wall and the plane of the second spray wall are parallel to the direction of the fresh air flow.

8. A fresh air conditioning system, characterized in that, The fresh air air conditioner includes the fresh air device according to any one of claims 1-7; the fresh air device further includes a filter and a heat exchanger; the filter, heat exchanger and functional module are arranged sequentially in the fresh air duct along the flow direction of the fresh air, and the functional module is close to the air outlet of the fresh air duct; the heat exchanger forms a first heat exchange duct and a second heat exchange duct arranged in an alternating manner. Outdoor fresh air enters the fresh air duct and flows sequentially through the filter, the first heat exchange duct, and the functional module. Indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct.

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