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 fresh air component and a humidification module. The fresh air component includes a fresh air volute and a fresh air volute cover, which form a fresh air cavity with an installation port. The humidification module includes a humidification base and multiple humidification boxes. The humidification base is located at the installation port, and the multiple humidification boxes are sequentially arranged on the humidification base along the fresh air flow direction within the fresh air cavity. Each humidification box stores water and has an opening facing the air intake side of the fresh air cavity. When the fresh air flows through the humidification boxes, the water in the humidification boxes evaporates into water vapor and mixes with the fresh air. The contact area between the fresh air and the water in the humidification boxes is large, resulting in thorough humidification and a significant humidification effect. When the fresh air in the fresh air cavity needs humidification, the first installation surface faces the fresh air cavity, and the humidification boxes are located inside the fresh air cavity. When the fresh air in the fresh air cavity does not need humidification, the second installation surface faces the fresh air cavity, and the second installation surface can close the installation port.

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 device of the air conditioner can introduce fresh outdoor air into the room, and the exhaust device of the air conditioner can filter the indoor stale air and discharge it to the outside, thus completing the replacement of the indoor air with fresh air. After the outdoor fresh air and the indoor stale air exchange heat through a heat exchanger, the temperature of the fresh air entering the room can be closer to the indoor temperature. In the existing technology, the fresh air is humidified through a wet film, but the contact area between the fresh air and the wet film is small during the humidification process, and only part of the fresh air flows through the surface of the wet film, resulting in insufficient humidification, uneven distribution of moisture in the fresh air after humidification, and an insignificant humidification effect. In addition, the failure to ensure the wetness of the wet film in real time greatly affects the humidification effect of the fresh air. 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 in the prior art such as insufficient humidification due to the small contact area between the fresh air and the wet film, uneven distribution of moisture in the fresh air after humidification, and insignificant humidification effect.

[0004] This invention provides a fresh air device, comprising:

[0005] A fresh air assembly includes a fresh air volute and a fresh air volute cover, which are fastened together to form a fresh air cavity, and the fresh air cavity has an installation port.

[0006] A humidification module includes a humidification base and multiple humidification boxes. The humidification base is disposed at the installation port. The multiple humidification boxes are sequentially disposed on the humidification base along the fresh air flow direction in the fresh air cavity, and the multiple humidification boxes are located inside the fresh air cavity. Each humidification box stores water and has an opening facing the air intake side of the fresh air cavity.

[0007] When fresh air flows through the humidifier box in the fresh air cavity, the water in the humidifier box can evaporate into water vapor and mix with the fresh air.

[0008] Further optionally, the humidifier base includes a first mounting surface and a second mounting surface disposed opposite to each other along its thickness direction, and a plurality of the humidifier boxes are disposed on the first mounting surface;

[0009] When the fresh air in the fresh air cavity needs to be humidified, the first mounting surface faces the fresh air cavity and the second mounting surface faces away from the fresh air cavity;

[0010] When the fresh air in the fresh air cavity does not need to be humidified, the first mounting surface is positioned away from the fresh air cavity and the second mounting surface is positioned towards the fresh air cavity, and the second mounting surface can close the mounting opening.

[0011] Optionally, the humidifier base is slidably disposed at the mounting port along the radial direction of the fresh air cavity; the position of the humidifier base can be adjusted according to the quality of the fresh air in the fresh air cavity, so that the radial length of the humidifier base sliding into the fresh air cavity is different, thereby resulting in different contact areas between the fresh air in the fresh air cavity and the water in the humidifier box.

[0012] Further optionally, each of the humidifying boxes extends along the width direction of the humidifying cavity and is rotatably mounted on the humidifying base; the rotation angle of the humidifying box can be adjusted according to the position of the humidifying box and the direction of the fresh air flow at that position, so that the opening of the humidifying box faces the same direction as the fresh air flow at that position.

[0013] Optionally, the humidification module further includes a support frame, which includes a first support frame and a second support frame disposed opposite to each other along the width direction of the fresh air cavity; the first support frame and the second support frame are slidably disposed on the humidification base along the flow direction of the fresh air in the fresh air cavity;

[0014] Each of the humidifier boxes is rotatably mounted on the first and second supports at both ends; the position of the humidifier box can be adjusted according to the quality of the fresh air in the fresh air cavity, so that the circumferential spacing of the humidifier base in the fresh air cavity is different, and thus the contact time between the fresh air in the fresh air cavity and the water in the humidifier box is different.

[0015] Further optionally, each of the humidifier boxes has a drainage hole at its bottom, and the drainage holes are arranged at intervals along the extension direction of the humidifier box; the humidifier base also has a plurality of drainage grooves, each of the drainage grooves extends along the flow direction of the fresh air in the fresh air cavity, and the plurality of drainage grooves are arranged at intervals along the width direction of the fresh air cavity.

[0016] Water in the humidifier box located upstream of the fresh air intake can flow through the corresponding drain hole and drain channel to the humidifier box located downstream of the fresh air intake.

[0017] Optionally, the humidification module further includes a water storage shell, which is detachably mounted on the humidification base and located away from the fresh air cavity; the water storage shell and the humidification base together form a water storage cavity.

[0018] The bottom wall of the drainage trough has a connecting hole, which connects the drainage trough and the water storage chamber.

[0019] Water in the water storage chamber can flow through the connecting hole to the drainage trough and the humidification box.

[0020] Optionally, the humidification module further includes a water collection tank and a spray nozzle. The water collection tank is located at the bottom of the humidification base and can collect the water discharged from the humidification box.

[0021] The spray element is installed inside the water collection tank or water storage chamber, and the spray element can spray water into the fresh air chamber.

[0022] Optionally, the fresh air device further includes a base, a stale air assembly, and a fan motor. The base includes a base body, and the fresh air assembly and the stale air assembly are arranged side by side at the bottom of the base body. The fresh air assembly also includes a fresh air fan blade, which is rotatably disposed within the fresh air cavity. The stale air assembly includes a stale air volute, a stale air volute cover, and a stale air fan blade. The stale air volute and the stale air volute cover are fastened together to form a stale air cavity. The stale air fan blade is rotatably disposed within the stale air cavity. The output shaft of the fan motor includes a first shaft end and a second shaft end. The first shaft end is driven to connect to the fresh air fan blade, and the second shaft end is driven to connect to the stale air fan blade.

[0023] The present invention also provides a fresh air conditioner, including an indoor unit body and a fresh air device as described in any of the above claims. The fresh air device is disposed on one side of the indoor unit body and further includes a filter and a heat exchanger. The base body forms a fresh air duct, and the filter and heat exchanger are sequentially arranged in the fresh air duct along the flow direction of the fresh air. The heat exchanger forms a first heat exchange duct and a second heat exchange duct arranged in an alternating manner. One end of the first heat exchange duct is connected to the fresh air duct, and the other end of the first heat exchange duct is connected to the fresh air cavity. One end of the second heat exchange duct is connected to the room, and the other end of the second heat exchange duct is connected to the stale air cavity.

[0024] Outdoor fresh air enters the fresh air duct and flows sequentially through the filter and the first heat exchange duct, then enters the fresh air chamber and is discharged into the room; indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct, then enters the stale air chamber and is discharged into the outside.

[0025] Compared with the prior art, the main advantages of the present invention are as follows:

[0026] (1) The fresh air cavity has an installation port, the humidifier base is set at the installation port, and multiple humidifier boxes are arranged in sequence on the humidifier base along the flow direction of the fresh air and located in the fresh air cavity. The humidifier boxes store water and have openings. When the fresh air in the fresh air cavity flows through the humidifier boxes, the water in the humidifier boxes can evaporate into water vapor and mix with the fresh air. The contact area between the fresh air and the water in the humidifier boxes is large, 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.

[0027] (2) When the fresh air in the fresh air cavity needs to be humidified, the first mounting surface faces the fresh air cavity and the humidification box is located inside the fresh air cavity to achieve humidification treatment of the fresh air; when the fresh air in the fresh air cavity does not need to be humidified, the second mounting surface faces the fresh air cavity and the second mounting surface can close the mounting opening to prevent the humidification box from affecting the flow of fresh air.

[0028] (3) The humidifier base is slidably installed at the installation port. The position of the humidifier base can be adjusted according to the quality of the fresh air in the fresh air cavity, so that the radial length of the humidifier base sliding into the fresh air cavity is different, and thus the contact area between the fresh air in the fresh air cavity and the water in the humidifier box is different. The structure is simple, the humidification is precise, and the humidification effect is obvious. The humidifier box is rotatably installed on the humidifier base through the bracket. The rotation angle of the humidifier box can be adjusted according to the position of the humidifier box and the flow direction of the fresh air at that position, so that the opening of the humidifier box is aligned with the flow direction of the fresh air at that position, thereby improving the humidification effect.

[0029] (4) When the humidification module is applied to the fresh air conditioner, it monitors the quality of fresh air in the fresh air duct in real time and then dynamically adjusts the position of the humidification seat or humidification box so that the water in the humidification box humidifies the fresh air to different degrees, meets different humidification needs, and improves the air humidification accuracy; the fresh air device is linked with the fresh air conditioner for control, and the control mode of the fresh air conditioner is optimized. Attached Figure Description

[0030] 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.

[0031] 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.

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of the fresh air device provided by the present invention;

[0033] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0034] Figure 3 This is a schematic diagram of the assembly structure of an embodiment of the fresh air device provided by the present invention;

[0035] Figure 4 This is an exploded structural diagram of an embodiment of the fresh air device provided by the present invention;

[0036] In the picture:

[0037] 1-Humidification module; 11-Humidification base; 111-Connecting hole; 12-Humidification box; 121-Drain hole; 13-Water storage shell; 14-Water storage cavity;

[0038] 2-Fresh air unit; 21-Mask; 22-Base; 221-Heat exchange component mounting position; 222-Filter mounting position; 23-Heat exchange component; 241-Fresh air chamber; 242-Mounting port; 243-Fresh air fan blade; 251-Dull air component; 252-Dull air fan blade; 26-Fan blade motor; 261-First shaft end; 262-Second shaft end; 27-Fresh air electrical box; 28-Filter. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] In existing fresh air systems, fresh air is humidified through a wet membrane. However, the contact area between the fresh air and the wet membrane is small during the humidification process, with only a portion of the fresh air flowing across the surface of the wet membrane. This results in insufficient humidification, uneven distribution of moisture in the fresh air after humidification, and an insignificant humidification effect. Furthermore, the failure to ensure the wetness of the wet membrane in real time greatly affects the humidification effect of the fresh air.

[0044] This invention creatively provides a fresh air device, including a fresh air component and a humidification module. The fresh air component includes a fresh air volute and a fresh air volute cover, which are fastened together to form a fresh air cavity with an installation port. The humidification module includes a humidification base and multiple humidification boxes, with the humidification base positioned at the installation port. The multiple humidification boxes are sequentially arranged on the humidification base along the fresh air flow direction within the fresh air cavity, and are located within the fresh air cavity. Each humidification box contains water and has an opening facing the air intake side of the fresh air cavity. When the fresh air flows through the humidification boxes, the water in the humidification boxes evaporates into water vapor and mixes with the fresh air. The large contact area between the fresh air and the water in the humidification boxes ensures thorough humidification and uniform moisture distribution in the humidified fresh air, resulting in a significant humidification effect and guaranteeing the humidity of the fresh air.

[0045] Example 1

[0046] <Fresh Air System>

[0047] like Figure 1 and Figure 2 As shown, this embodiment provides a fresh air device 2, including:

[0048] The fresh air assembly includes a fresh air volute and a fresh air volute cover, which are fastened together to form a fresh air cavity 241, and the fresh air cavity 241 has an installation port 242.

[0049] The humidification module 1 includes a humidification base 11 and multiple humidification boxes 12. The humidification base 11 is located at the installation port 242. The multiple humidification boxes 12 are arranged sequentially on the humidification base 11 along the fresh air flow direction in the fresh air cavity 241, and the multiple humidification boxes 12 are located inside the fresh air cavity 241. Each humidification box 12 stores water and has an opening facing the air intake side of the fresh air in the fresh air cavity 241.

[0050] When fresh air flows through the humidification box 12 in the fresh air cavity 241, the water in the humidification box 12 can evaporate into water vapor and mix with the fresh air.

[0051] Furthermore, the humidifier base 11 includes a first mounting surface and a second mounting surface that are disposed opposite each other along its thickness direction, and a plurality of humidifier boxes 12 are disposed on the first mounting surface;

[0052] When the fresh air in the fresh air cavity 241 needs to be humidified, the first mounting surface faces the fresh air cavity 241 and the second mounting surface faces away from the fresh air cavity 241 to achieve humidification of the fresh air.

[0053] When the fresh air in the fresh air cavity 241 does not need to be humidified, the first mounting surface is turned away from the fresh air cavity 241 and the second mounting surface is turned towards the fresh air cavity 241. The second mounting surface can close the mounting opening 242 to prevent the humidification box 12 from affecting the flow of fresh air.

[0054] To address the issue of small contact area between fresh air and water in the humidifier box 12 when fresh air flows through it, this embodiment proposes that each humidifier box 12 extends along the width of the humidification chamber and is rotatably mounted on the humidifier base 11. The rotation angle of the humidifier box 12 can be adjusted according to its position and the direction of fresh air flow at that position, ensuring that the opening of the humidifier box 12 faces the same direction as the fresh air flow at that position. This increases the contact area between the fresh air and the water in the humidifier box 12, ensuring sufficient contact and guaranteeing the humidification effect.

[0055] Furthermore, the humidification module 1 also includes a bracket, which includes a first bracket and a second bracket arranged opposite to each other along the width direction of the fresh air cavity 241; the first bracket and the second bracket are slidably arranged on the humidification base 11 along the flow direction of the fresh air in the fresh air cavity 241.

[0056] Each humidifier box 12 is rotatably mounted on the first bracket and the second bracket at both ends; the position of the humidifier box 12 can be adjusted according to the quality of the fresh air in the fresh air cavity 241, so that the circumferential spacing of the humidifier base 11 in the fresh air cavity 241 is different, and thus the contact time between the fresh air in the fresh air cavity 241 and the water in the humidifier box 12 is different.

[0057] To address the issue that the fresh air cannot be humidified when it flows through an adjacent humidifier box 12, this embodiment proposes that each humidifier box 12 has a drain hole 121 at its bottom, and the drain holes 121 include multiple drain holes 121 arranged sequentially at intervals along the extension direction of the humidifier box 12; the humidifier base 11 also has multiple drain grooves, each drain groove extending along the flow direction of the fresh air in the fresh air cavity 241, and the multiple drain grooves arranged sequentially at intervals along the width direction of the fresh air cavity 241;

[0058] Water in the humidifier box 12 located upstream of the fresh air source can flow through the corresponding drain hole 121 and / or drain trough to the humidifier box 12 located downstream of the fresh air source.

[0059] Furthermore, the humidification module 1 also includes a water storage shell 13, which is detachably mounted on the humidification base 11 and away from the fresh air cavity 241; the water storage shell 13 and the humidification base 11 form a water storage cavity 14.

[0060] The bottom wall of the drainage trough has a connecting hole 111, which connects the drainage trough and the water storage chamber 14.

[0061] Water in the water storage chamber 14 can flow through the connecting hole 111 to the drain trough and the humidification box 12.

[0062] In response to the problems of water discharged from the humidifier box 12 not being collected in time and insufficient humidification of fresh air, this embodiment proposes that the humidifier module 1 also includes a water collection tank and a spray component. The water collection tank is located at the bottom of the humidifier base 11 and can collect the water discharged from the humidifier box 12.

[0063] The spray unit is installed in the water collection tank or water storage chamber 14, and the spray unit can spray water into the fresh air chamber 241.

[0064] In addition, the fresh air device 2 also includes a base 22, a stale air assembly 251, and a fan motor 26. The base 22 includes a base 22 body, and the fresh air assembly and the stale air assembly 251 are arranged side by side at the bottom of the base 22 body. The fresh air cavity 241 forms a fresh air cavity inlet and a fresh air cavity outlet. The fresh air assembly also includes a fresh air fan blade 243, which is rotatably arranged in the fresh air cavity 241. The stale air assembly 251 includes a stale air volute, a stale air volute cover, and a stale air fan blade 252. The stale air volute and the stale air volute cover are fastened together to form a stale air cavity, which has a stale air cavity inlet and a stale air cavity outlet. The stale air fan blade 252 is rotatably arranged in the stale air cavity. The output shaft of the fan motor 26 includes a first shaft end 261 and a second shaft end 262. The first shaft end 261 is driven to the fresh air fan blade 243, and the second shaft end 262 is driven to the stale air fan blade 252.

[0065] <Fresh Air Conditioner>

[0066] like Figure 3 and Figure 4 As shown, this embodiment proposes a fresh air conditioner, including an indoor unit body and a fresh air device 2 as described above. The fresh air device 2 is disposed on one side of the indoor unit body and also includes a filter and a heat exchanger 23. A fresh air duct is formed in the base body. A filter mounting position 222 and a heat exchanger mounting position 221 are sequentially formed in the fresh air duct along the flow direction of the fresh air. The filter 28 is disposed at the filter mounting position 222, and the heat exchanger 23 is disposed at the heat exchanger mounting position 221. The heat exchanger 23 forms a first heat exchange duct and a second heat exchange duct that are arranged in an alternating manner. The air inlet end of the first heat exchange duct is connected to the fresh air duct, the air outlet end of the first heat exchange duct is connected to the fresh air cavity inlet, and the fresh air cavity outlet is connected to the indoor environment. The air inlet end of the second heat exchange duct is connected to the indoor environment, and the air outlet end of the second heat exchange duct is connected to the stale air cavity inlet. The stale air cavity outlet is connected to the outside environment through an exhaust pipe.

[0067] Outdoor fresh air enters the fresh air duct through the fresh air duct and flows through the filter and the first heat exchange duct in sequence. Then it enters the fresh air chamber 241 and is discharged into the room. When the fresh air flows through the humidification box 12, the fresh air is humidified. The indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct. Then it enters the stale air chamber and is discharged to the outside through the exhaust duct.

[0068] The fresh air device 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, which is electrically connected to the detection element and the fan motor 26. 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 determines the rotation angle of the humidifier box 12 based on the quality of fresh air and controls the rotation of the humidifier box 12 so that the opening of the humidifier box 12 faces the same direction as the flow of fresh air at the location of the humidifier box 12. This increases the contact area between the fresh air and the water in the humidifier box 12, ensuring sufficient contact between the fresh air and the water in the humidifier box 12 and guaranteeing the humidification effect. The fresh air control board controls the operation of the fan motor 26, causing the fresh air fan blade 243 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 component, a fresh air fan blade 243, a stale air component 251, a stale air fan blade 252, and a fan blade motor 26, all of which are installed inside the mask 21.

[0070] Example 2

[0071] Based on Example 1, the humidifier base 11 is slidably disposed at the mounting port 242 along the radial direction of the fresh air cavity 241; the position of the humidifier base 11 can be adjusted according to the quality of the fresh air in the fresh air cavity 241, so that the radial length of the humidifier base 11 sliding into the fresh air cavity 241 is different, thereby the contact area between the fresh air in the fresh air cavity 241 and the water in the humidifier box 12 is different, so as to achieve different humidification effects and meet different humidification needs.

[0072] 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 fresh air assembly includes a fresh air volute and a fresh air volute cover, which are fastened together to form a fresh air cavity, and the fresh air cavity has an installation port. A humidification module includes a humidification base and multiple humidification boxes. The humidification base is disposed at the mounting port. The multiple humidification boxes are sequentially arranged on the humidification base along the fresh air flow direction within the fresh air cavity, and the multiple humidification boxes are located within the fresh air cavity. Each humidification box stores water and has an opening facing the air intake side of the fresh air cavity. When the fresh air flows through the humidification box, the water in the humidification box can evaporate into water vapor and mix with the fresh air. The humidifier base includes a first mounting surface and a second mounting surface arranged opposite each other along its thickness direction, and a plurality of humidifier boxes are arranged on the first mounting surface; when the fresh air in the fresh air cavity needs to be humidified, the first mounting surface faces the fresh air cavity and the second mounting surface faces away from the fresh air cavity; when the fresh air in the fresh air cavity does not need to be humidified, the first mounting surface faces away from the fresh air cavity and the second mounting surface faces the fresh air cavity, and the second mounting surface can close the mounting opening.

2. The fresh air device according to claim 1, characterized in that, The humidifier base is slidably disposed at the mounting port along the radial direction of the fresh air cavity; the position of the humidifier base can be adjusted according to the quality of the fresh air in the fresh air cavity, so that the radial length of the humidifier base sliding into the fresh air cavity is different, thereby resulting in different contact areas between the fresh air in the fresh air cavity and the water in the humidifier box.

3. The fresh air device according to claim 1, characterized in that, Each of the humidifier boxes extends along the width of the fresh air chamber and is rotatably mounted on the humidifier base; the rotation angle of the humidifier box can be adjusted according to its position and the direction of the fresh air flow at that position, so that the opening of the humidifier box faces the same direction as the fresh air flow at that position.

4. The fresh air device according to claim 3, characterized in that, The humidification module also includes a support frame, which includes a first support frame and a second support frame that are disposed opposite to each other along the width direction of the fresh air cavity; the first support frame and the second support frame are slidably disposed on the humidification base along the flow direction of the fresh air in the fresh air cavity; Each of the humidifier boxes is rotatably mounted on the first and second supports at both ends; the position of the humidifier box can be adjusted according to the quality of the fresh air in the fresh air cavity, so that the circumferential spacing of the humidifier base in the fresh air cavity is different, and thus the contact time between the fresh air in the fresh air cavity and the water in the humidifier box is different.

5. The fresh air device according to claim 3, characterized in that, Each of the humidifier boxes has a drainage hole at its bottom, and the drainage holes are arranged at intervals along the extension direction of the humidifier box; the humidifier base also has a plurality of drainage grooves, each of the drainage grooves extends along the flow direction of the fresh air in the fresh air cavity, and the drainage grooves are arranged at intervals along the width direction of the fresh air cavity. Water in the humidifier box located upstream of the fresh air intake can flow through the corresponding drain hole and / or drain channel to the humidifier box located downstream of the fresh air intake.

6. The fresh air device according to claim 5, characterized in that, The humidification module also includes a water storage shell, which is detachably mounted on the humidification base and located away from the fresh air cavity; the water storage shell and the humidification base together form a water storage cavity; The bottom wall of the drainage trough has a connecting hole, which connects the drainage trough and the water storage chamber. Water in the water storage chamber can flow through the connecting hole to the drainage trough and the humidification box.

7. The fresh air device according to claim 6, characterized in that, The humidification module also includes a water collection tank and a spray nozzle. The water collection tank is located at the bottom of the humidification base and can collect the water discharged from the humidification box. The spray element is installed inside the water collection tank or water storage chamber, and the spray element can spray water into the fresh air chamber.

8. The fresh air device according to claim 1, characterized in that, The fresh air device further includes a base, a stale air assembly, and a fan motor. The base includes a base body, and the fresh air assembly and the stale air assembly are arranged side by side at the bottom of the base body. The fresh air assembly also includes a fresh air fan blade, which is rotatably disposed within the fresh air cavity. The stale air assembly includes a stale air volute, a stale air volute cover, and a stale air fan blade. The stale air volute and the stale air volute cover are fastened together to form a stale air cavity. The stale air fan blade is rotatably disposed within the stale air cavity. The output shaft of the fan motor includes a first shaft end and a second shaft end. The first shaft end is driven to connect to the fresh air fan blade, and the second shaft end is driven to connect to the stale air fan blade.

9. A fresh air conditioning system, characterized in that, The fresh air conditioner includes an indoor unit body and a fresh air device as described in any one of claims 1-8. The fresh air device is disposed on one side of the indoor unit body and further includes a filter and a heat exchanger. The fresh air device also includes a base, which includes a base body. The base body forms a fresh air duct, and the filter and heat exchanger are sequentially arranged in the fresh air duct along the direction of fresh air flow. The heat exchanger forms a first heat exchange duct and a second heat exchange duct arranged in an alternating manner. One end of the first heat exchange duct is connected to the fresh air duct, and the other end of the first heat exchange duct is connected to the fresh air cavity. One end of the second heat exchange duct is connected to the room, and the other end of the second heat exchange duct is connected to the stale air cavity. Outdoor fresh air enters the fresh air duct and flows sequentially through the filter and the first heat exchange duct, then enters the fresh air chamber and is discharged into the room; indoor stale air enters the second heat exchange duct and completes heat exchange with the fresh air flowing through the first heat exchange duct, then enters the stale air chamber and is discharged into the outside.

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