A fresh air system

Abstract

The present invention relates to the technical field of fresh air systems, and specifically to a fresh air system, comprising: a machine body, a fresh air unit for exchanging indoor and outdoor air; the fresh air unit comprises: a fresh air duct, a return air duct, and a partition; the partition divides the machine body into a fresh air duct and a return air duct. In the present invention, an electric telescopic rod pulls a second support plate to abut against an inclined filter plate on a return air filter, causing the horizontal filter plate to rotate and then abut against a rotating plate, and drives the rotating plate to rotate and tilt. At this time, the return air enters the interior of the return air duct, and part of the return air is blown toward the fresh air duct under the influence of the inclined surface, and is discharged into the room through the fresh air duct. On the one hand, the load of the return air filter 1 and the return air filter 2 can be reduced, ensuring the use effect of the return air filter 1 and the return air filter 2. On the other hand, the return air enters the fresh air duct and mixes with the fresh air in the fresh air duct. The odor carried by the return air is diluted, reducing the pollution of the indoor air by impurities in the return air.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air systems, and in particular to a fresh air system. Background Art

[0002] The fresh air system is an independent air treatment system used for indoor air purification and ventilation. It is mainly used to address the problem of poor air quality in confined spaces in modern buildings, especially in places with poor air quality or where the indoor environment needs to be kept clean, such as offices and residences.

[0003] Fresh air systems primarily consist of a supply and exhaust system. They mechanically draw fresh air into a closed room from one side while simultaneously exhausting stale air from the other side, creating a "fresh air flow field" to meet the need for fresh air exchange. Depending on their design and application scenarios, fresh air systems can be categorized as ducted or ductless. Ducted fresh air systems are connected to the main unit via ducts and are suitable for large or industrial areas. Ductless fresh air systems, on the other hand, are more portable, easier to install, and more suitable for home use.

[0004] The invention with application number CN202410918529.5 is a fresh air treatment mechanism for factory air, which relates to the field of fresh air treatment technology. The fresh air treatment mechanism for factory air includes a mounting box, and four groups of partitions are fixed inside the mounting box. In the process of fresh air treatment of factory air by the invention, through the mutual cooperation of the identification component and the filter component, when the difference between the air intake volume on the indoor air intake pipe and the outdoor air intake pipe is large, the filter belts at different positions are switched to be inside the mounting frame for filtering through transmission, and the intake air is processed by synchronously switching the unused or cleaned filter belts on the two groups of mounting frames, ensuring that the filtration permeability of the filter belts on the two groups of mounting frames is basically the same, reducing the probability of a large difference in the air intake volume on the indoor air intake pipe and the outdoor air intake pipe, and facilitating high-quality treatment operations of the air inside the factory.

[0005] However, this patent relies on a filter belt to filter the gas. When the filtering conditions in the return air and the fresh air are different, the load on the filter belt in the return air increases.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0007] The purpose of the present invention is to provide a fresh air system that can effectively solve the above technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical solutions are adopted:

[0009] A fresh air system comprises: a body, a fresh air unit for exchanging indoor and outdoor air;

[0010] The fresh air unit includes: a fresh air channel, a return air channel, and a partition; the partition separates the body into the fresh air channel and the return air channel;

[0011] The return air channel includes: a return air inlet and a return air outlet provided on the machine body, a lifting assembly for pulling the partition to move, and a return air filter assembly for processing the return air;

[0012] The lifting assembly includes: an inclined plate fixedly mounted on the return air duct, an electric telescopic rod, a closing plate fixedly mounted on the electric telescopic rod, and a protective plate fixedly mounted on the closing plate;

[0013] The return air filter assembly includes: a return air filter 1 rotatably mounted on the return air channel, and a return air filter 2 fixedly mounted on the return air channel;

[0014] The return air filter is composed of an inclined filter plate and a horizontal filter plate;

[0015] The partition is composed of: a supporting plate 1 fixedly installed on the return air channel, a supporting plate 2 slidably connected to the return air channel, and a rotating plate rotatably installed on the return air channel.

[0016] Furthermore, a sliding groove is provided on the inclined plate, a slider is slidably connected to the sliding groove, the slider is fixedly installed on the protective plate, and the closing plate is fixedly connected to the supporting plate.

[0017] Furthermore, the fresh air channel includes: a fresh air inlet and a fresh air outlet opened on the body, a fresh air processing mechanism for processing the fresh air, and a dehumidification component for removing moisture from the fresh air.

[0018] Furthermore, the fresh air processing mechanism includes: a filter component for filtering the fresh air, and a cleaning component for cleaning the filter component.

[0019] Furthermore, the filter assembly includes: a fresh air primary filter slidably connected to the fresh air channel, a double-sided rack fixedly connected to the fresh air primary filter, a gear 2 meshing with the double-sided rack, a cam fixedly connected to the gear 2, a fresh air rear filter 2 fixedly installed on the fresh air channel, a spring fixedly installed on the fresh air rear filter 2, a push rod, and a fresh air rear filter 1 fixedly installed on the spring.

[0020] Furthermore, filter holes are provided on the fresh air rear filter 1 and the fresh air rear filter 2, the filter holes on the fresh air rear filter 1 and the fresh air rear filter 2 are staggered, and the top rod corresponds to the position of the filter holes on the fresh air rear filter 1.

[0021] Furthermore, the cleaning assembly includes: a baffle fixedly installed on the fresh air channel, a fixing plate fixedly installed on the baffle, a cleaning brush rotatably installed on the fresh air channel, a cleaning part for cleaning the cleaning brush, and gear 1 fixedly installed on the end of the cleaning brush; the gear 1 is engaged with the double-sided rack.

[0022] Furthermore, one side of the cleaning piece is serrated, a bottom plate is fixedly mounted on the end of the cleaning piece, a limiting groove is provided on the fixing plate, and the bottom plate is slidably connected to the fixing plate through the limiting groove.

[0023] Furthermore, the dehumidifying component is fixedly installed on the fresh air channel, an air inlet and an air outlet are provided on the dehumidifying component, and a water collecting tank is fixedly installed on the dehumidifying component.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a fresh air system, in which an electric telescopic rod pulls a closing plate to drive a second support plate to move, and the second support plate abuts against an inclined filter plate on a return air filter, so that the horizontal filter plate rotates and abuts against a rotating plate, and drives the rotating plate to rotate and tilt. At this time, the return air enters the return air duct, and part of the return air is blown toward the fresh air duct under the influence of the inclined surface, and is discharged into the room through the fresh air duct. On the one hand, the load of the return air filter 1 and the return air filter 2 can be reduced, and the use effect of the return air filter 1 and the return air filter 2 can be ensured. On the other hand, the return air enters the fresh air duct and mixes with the fresh air in the fresh air duct. The odor carried by the return air is diluted, and the pollution of the indoor air by impurities in the return air is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0027] Figure 1 A schematic diagram of a fresh air system according to the present invention;

[0028] Figure 2 This is a schematic diagram of a fresh air unit of a fresh air system of the present invention;

[0029] Figure 3 This is a schematic top view of a fresh air system according to the present invention;

[0030] Figure 4 This is a schematic diagram of a baffle of a fresh air system of the present invention;

[0031] Figure 5 This is a schematic diagram of a lifting component of a fresh air system of the present invention;

[0032] Figure 6This is a schematic diagram of a dehumidification component of a fresh air system of the present invention;

[0033] Figure 7 This is a schematic diagram of a fresh air processing mechanism of a fresh air system of the present invention;

[0034] Figure 8 This is a schematic diagram of a filter assembly of a fresh air system according to the present invention;

[0035] Figure 9 This is a schematic diagram of a cleaning component of a fresh air system of the present invention;

[0036] Figure 10 This is a schematic diagram of a cleaning component of a fresh air system of the present invention;

[0037] Figure 11 This is a schematic diagram of a rotating plate of a fresh air system of the present invention.

[0038] In the figure: 1. Body; 2. Fresh air unit; 21. Fresh air channel; 211. Fresh air inlet; 212. Fresh air outlet; 213. Fresh air treatment mechanism; 2131. Cleaning component; 21311. Baffle; 21312. Fixing plate; 213121. Limiting groove; 21313. Cleaning piece; 213131. Bottom plate; 21314. Cleaning brush; 21315. Gear 1; 2132. Filter assembly; 21321. Fresh air primary filter; 21322. Double-sided rack; 21323. Gear 2; 21324. Cam; 21325. Fresh air rear filter 1; 21326. Fresh air rear filter 2 ; 21327, spring; 21328, push rod; 214, dehumidification component; 2141, air inlet; 2142, air outlet; 2143, water collecting tank; 22, return air duct; 221, return air inlet; 222, return air outlet; 223, lifting assembly; 2231, inclined plate; 2232, slide; 2233, slider; 2234, protective plate; 2235, closing plate; 2236, electric telescopic rod; 224, return air filter assembly; 2241, return air filter 1; 2242, return air filter 2; 23, partition; 231, support plate 1; 232, rotating plate; 233, support plate 2. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0040] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0041] like Figures 1 to 11 As shown, the present invention provides a fresh air system, comprising: a machine body 1, a fresh air unit 2 for exchanging indoor and outdoor air; the fresh air unit 2 comprises: a fresh air duct 21, a return air duct 22, and a partition 23; the partition 23 separates the machine body 1 into the fresh air duct 21 and the return air duct 22; a high-pressure fan is also installed on the machine body 1, which relies on the high-pressure fan to supply air into the room through the fresh air duct 21 and extract the indoor polluted air through the return air duct 22, thereby realizing ventilation of the room.

[0042] The return air duct 22 includes: a return air inlet 221 opened on the body 1, a return air outlet 222, a lifting assembly 223 that pulls the partition 23 to move, and a return air filter assembly 224 that processes the return air; the return air filter assembly 224 filters the air in the return air duct 22 and discharges it to prevent the discharged foul air from polluting the environment.

[0043] The return air filter assembly 224 includes: a return air filter 2241 rotatably mounted on the return air duct 22, and a return air filter 2242 fixedly mounted on the return air duct 22; the return air filter 2241 is composed of an inclined filter plate and a horizontal filter plate; the angle between the inclined filter plate and the horizontal filter plate needs to be greater than 90°, and the return air filter 2 2242 is a flexible filter. The return air enters the interior of the machine body 1 through the return air inlet 2141, is filtered through the inclined filter plate on the return air filter 2241, and then is filtered through the return air filter 2 2242, and is finally discharged through the return air outlet 222, thereby reducing the impact of the discharged return air on the environment.

[0044] Continuously filtering the return air for a long time will increase the load on the return air filter 1 2241 and the return air filter 2 2242, resulting in a reduction in the service life of the return air filter 1 2241 and the return air filter 2 2242. By setting the lifting component 223 in the present application, when the indoor gas pollution level is low, the partition 23 is pulled to move, so that the return air enters the fresh air duct 21 and returns to the room, thereby reducing the usage load of the return air filter 1 2241 and the return air filter 2 2242.

[0045] The partition 23 is composed of: a support plate 231 fixedly mounted on the return air duct 22, a support plate 233 slidably connected to the return air duct 22, and a rotating plate 232 rotatably mounted on the return air duct 22, as shown in the accompanying drawings of the specification. Figure 4 As shown, the rotating plate 232 is composed of two rotating plates 232 connected to each other. For the connection between one rotating plate 232 and the second supporting plate 233, please refer to the accompanying drawings of the specification. Figure 11 A long groove is provided on the second support plate 233, and a sliding pin is slidably connected in the long groove. The sliding pin is rotatably connected to one of the rotating plates 232. When the rotating plate 232 rotates, the sliding pin is pulled to slide inside the long groove. After rotation, the fresh air channel 21 and the return air channel 22 can be connected. At this time, the return air can enter the fresh air channel 21 and be discharged into the room through the fresh air channel 21 to reduce the load on the return air filter 1 2241 and the return air filter 2 2242.

[0046] By introducing the return air into the fresh air duct 21 and discharging it back into the room through the fresh air duct 21, on the one hand, the temperature of the return air can be used to neutralize the temperature of the fresh air, reducing the discomfort caused by the fresh air blowing into the room; on the other hand, it avoids continuous processing of the return air, reducing the load on the return air filtration, and has a good use effect.

[0047] The lifting assembly 223 includes: an inclined plate 2231 fixedly installed on the return air duct 22, an electric telescopic rod 2236, a closing plate 2235 fixedly installed on the electric telescopic rod 2236, and a protective plate 2234 fixedly installed on the closing plate 2235; a sliding groove 2232 is provided on the inclined plate 2231, a slider 2233 is slidably connected to the sliding groove 2232, the slider 2233 is fixedly installed on the protective plate 2234, and the closing plate 2235 is fixedly connected to the support plate 233.

[0048] The electric telescopic rod 2236 pulls the closing plate 2235 to drive the support plate 233 to move, and the support plate 233 abuts the inclined filter plate on the return air filter, so that the horizontal filter plate rotates and abuts the rotating plate 232, and drives the rotating plate 232 to rotate and tilt. At this time, the return air enters the return air duct 22, and part of the return air is blown to the fresh air duct 21 under the influence of the inclined surface, and is discharged into the room through the fresh air duct 21. On the one hand, it can reduce the load of the return air filter 1 2241 and the return air filter 2 2242, and ensure the use effect of the return air filter 1 2241 and the return air filter 2 2242. On the other hand, the return air enters the fresh air duct 21 and mixes with the fresh air in the fresh air duct 21. The odor carried in the return air is diluted, reducing the pollution to the indoor air.

[0049] It should be noted that the temperature of the return air is generally higher than that of the fresh air. After mixing with the fresh air, it can also alleviate the temperature of the fresh air and prevent the temperature from lowering after the fresh air is blown into the room. It should be noted that mixing the return air with the fresh air will reduce the quality of the fresh air, but it can reduce the load of the return air filter 2241 and the return air filter 2 2242. Users can adjust it according to their usage experience.

[0050] When the electric telescopic rod 2236 pulls the closing plate 2235 to move, it drives the protective plate 2234 to slide inside the slide groove 2232 through the slider 2233 to prevent the protective plate 2234 from shaking when moving, resulting in reduced protection effect of the closing plate 2235 and the protective plate 2234 on the electric telescopic rod 2236. Impurities carried in the return air blow toward the electric telescopic rod 2236, making the electric telescopic rod 2236 more easily damaged.

[0051] When the support plate 233 moves, one of the rotating plates 232 is used to pull the other rotating plate 232 to move. At this time, the rotating plate 232 does not guide the return air into the fresh air channel 21. Instead, when the horizontal filter plate abuts against the other rotating plate 232, the other rotating plate 232 rotates under the action of the horizontal filter plate. At this time, the return air is blown toward the return air channel 22 and blown toward the fresh air channel 21 under the action of the other rotating plate 232.

[0052] In addition, when the support plate 233 moves, the distance between the two ends of the return air filter 2242 is reduced, and the structure of the return air filter 2242 is deformed, so that the structure of the impurities attached to the return air filter 2242 changes, and falls from the return air filter 2242, thereby clearing the return air filter 2242. Moreover, the return air blowing toward the return air filter 2242 can accelerate the falling of impurities attached to the return air filter 2242 but with unstable structure, thereby cleaning the return air filter 2242 and ensuring that the return air filter 2 2242 can process the return air. After the return air filter 1 2241 rotates, the return air is filtered by the horizontal filter plate, reducing the use load of the inclined filter plate and ensuring the processing effect of the return air.

[0053] A rotating shaft is set at the connection between the horizontal filter plate and the inclined filter plate, which is rotatably connected to the return air channel 22. A torsion spring is fixedly installed on the rotating shaft to drive the return air filter 2241 to reset. One end of the torsion spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the return air channel 22. When the return air filter 2241 rotates, the torsion spring deforms. When the support plate 233 is reset, the return air filter 2241 is reset under the action of the torsion spring. The rotating plate 232 is reset after rotating under the relative blowing of fresh air and return air, so as to facilitate subsequent use.

[0054] The fresh air passage 21 includes: a fresh air inlet 211 opened on the body 1, a fresh air outlet 212, a fresh air processing mechanism 213 for processing the fresh air, and a dehumidification component 214 for removing moisture from the fresh air.

[0055] Fresh air enters the fresh air channel 21 in the body 1 through the fresh air inlet 211, is processed by the fresh air processing mechanism 213, and then passes through the dehumidification component 214 to process the moisture in the fresh air to ensure the gas quality of the fresh air.

[0056] The fresh air processing mechanism 213 includes: a filter component 2132 for filtering the fresh air and a cleaning component 2131 for cleaning the filter component 2132. The filter component 2132 filters the fresh air, and the cleaning component 2131 cleans the filter component 2132 to ensure the use effect of the filter component 2132.

[0057] The filter assembly 2132 includes: a fresh air primary filter 21321 slidably connected to the fresh air duct 21 , a fresh air rear filter 21326 fixedly installed on the fresh air duct 21 , and a fresh air rear filter 1 21325 fixedly installed on the spring 21327 .

[0058] The fresh air is filtered through the fresh air primary filter 21321 and then through the fresh air post-filter 1 21325 and the fresh air post-filter 2 21326, which greatly reduces the impact of impurities in the fresh air on the indoor environment. In addition, the fresh air primary filter 21321, as the first filter, has the highest load and needs to be cleaned frequently. If there is an environment with a lot of catkins, the fresh air primary filter 21321 will be blocked frequently, which will greatly affect the fresh air circulation.

[0059] The cleaning assembly 2131 includes: a baffle 21311 fixedly installed on the fresh air duct 21, a fixing plate 21312 fixedly installed on the baffle 21311, a cleaning brush 21314 rotatably installed on the fresh air duct 21, a cleaning piece 21313 for cleaning the cleaning brush 21314, a gear 21315 fixedly installed on the end of the cleaning brush 21314, and a double-sided rack 21322 fixedly connected to the fresh air primary filter 21321. One end of the baffle 21311 abuts against the fresh air outlet filter, and a bottom plate 213131 is fixedly installed on the end of the cleaning piece 21313. A limiting groove 213121 is provided on the fixing plate 21312, and the bottom plate 213131 is slidably connected to the fixing plate 21312 through the limiting groove 213121.

[0060] When the support plate 233 moves, it drives the fresh air primary filter 21321 to move synchronously, and engages with the double-sided rack 21322 through the gear 1 21315, driving the cleaning brush 21314 to rotate, and cleans the catkins and hair on the surface of the fresh air primary filter 21321, and rotates to the position of the cleaning part 21313. Under the action of the cleaning part 21313, the catkins and hair are cleaned, so that the cleaning brush 21314 always maintains a good cleaning effect on the fresh air primary filter 21321, and avoids the fresh air primary filter 21321 from being blocked. The cleaning part 21313 is a plate type that is close to the cleaning brush 21314, and one side of the cleaning part 21313 is serrated. When the cleaning brush 21314 rotates, the cleaning part 21313 peels off the catkins and hair from the cleaning brush 21314 through the serrated end, and the cleaning effect is good.

[0061] When the cleaned lint needs to be collected and processed, the cleaning piece 21313 is pulled upward, and at the same time, the bottom plate 213131 is driven to slide in the limiting groove 213121 and move out from the fixed plate 21312. Under the action of the bottom plate 213131, the lint is brought out, completing the processing of the accumulated lint.

[0062] It should be added that one end of the baffle 21311 is in contact with the fresh air primary filter 21321. When the fresh air primary filter 21321 moves, one end of the baffle 21311 can scrape off the hair closely attached to the fresh air primary filter 21321, further improving the cleaning effect of the fresh air primary filter 21321.

[0063] It should be noted that when the support plate 233 moves, the return air will be blown into the fresh air channel 21 through the guide of the rotating plate 232. At this time, the position of the fresh air primary filter 21321 after moving is in the path of the return air entering the fresh air channel 21. That is to say, the return air blowing into the fresh air channel 21 can also clean the fresh air primary filter 21321. Since the return air blows in from the other side of the fresh air primary filter 21321, it is different from the fresh air flow direction, which helps to remove the blockage in the fresh air primary filter 21321. The impurities in the mesh of 1321 are blown out, and the mesh of the fresh air primary filter 21321 is cleaned. On the one hand, the rotating plate 232 can separate the interior of the body 1 into the fresh air channel 21 and the return air channel 22. On the other hand, it can introduce the return air into the fresh air channel 21, reducing the load of the return air filter 1 2241 and the return air filter 2 2242, and can clean the fresh air primary filter 21321 to avoid clogging of the mesh of the fresh air primary filter 21321, and the use effect is good.

[0064] It should be noted that, in this application, the gear 21323 is rotatably mounted on the body 1 through the gear 21323 meshing with the double-sided rack 21322, the cam 21324 fixedly connected to the gear 21323, the spring 21327 fixedly mounted on the fresh air rear filter 21326, and the push rod 21328. The fresh air rear filter 1 21325 and the fresh air rear filter 2 21326 are provided with filter holes, and the push rod 21328 is fixed to the fresh air rear filter 1 21326. 25, the filter holes on the front of the filter screen correspond to each other, and the fresh air primary filter 21321 is cleaned while the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326 are cleaned, thereby ensuring the filtering effect of the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326 on the fresh air, and avoiding the accumulation of impurities on the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326, which leads to a reduction in the service life of the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326.

[0065] When the fresh air primary filter 21321 moves, the double-sided rack 21322 drives the gear 2 21323 to rotate, and drives the cam 21324 to rotate. When the cam 21324 rotates, it knocks the fresh air rear filter 1 21325 to compress the spring 21327 to deform, resulting in the cam 21324 intermittently knocking the fresh air rear filter 1 21325, and resets under the action of the spring 21327, so that the fresh air rear filter 1 21325 vibrates and shakes off the dust on the surface. When the fresh air rear filter 1 21325 moves, the push rod 21328 enters the filter holes on the fresh air rear filter 1 21325, which can dredge the filter holes and ensure the filtering effect of the fresh air rear filter 1 21325.

[0066] Since the filter holes on the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326 are staggered, when the fresh air passes through the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326, the flow direction of the fresh air will change within a short distance, so that the dust and other particulate impurities in the fresh air will be blocked by the fresh air rear filter 2 21326 during the turning process, thereby improving the filtering effect of particulate impurities in the fresh air.

[0067] When the fresh air primary filter 21321 of this application moves, on the one hand, it can drive the cleaning brush 21314 to rotate to clean the fluff on the surface of the fresh air primary filter 21321, and on the other hand, it drives the gear 2 21323 to rotate to complete the cleaning of the fresh air rear filter 1 21325 and the fresh air rear filter 2 21326.

[0068] The dehumidifier 214 is fixedly installed on the fresh air duct 21, and is provided with an air inlet 2141 and an air outlet 2142. A water collecting tank 2143 is fixedly installed on the dehumidifier 214. The dehumidifier 214 has a double helix structure. The fresh air enters the spiral structure through the air inlet 2141 and is discharged through the air outlet 2142, which greatly increases the movement distance of the fresh air. In the process of movement, the fresh air contacts the dehumidifier 214, and the water vapor in the fresh air will adhere to the dehumidifier 214 and enter the water collecting tank 2143 after converging. A hot air blower can be installed on the upper end of the dehumidifier 214 to control the temperature of the fresh air, and the hot air blower can also blow the water vapor attached to the dehumidifier 214 into the water collecting tank 2143, thereby improving the treatment effect of the humidity in the fresh air. A water mist humidifier can be installed near the air outlet to humidify the fresh air with insufficient humidity, and the use effect is good.

[0069] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0070] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A fresh air system, characterized in that: include: The body and the fresh air unit for exchanging indoor and outdoor air; The fresh air unit includes: a fresh air channel, a return air channel, and a partition; the partition separates the body into the fresh air channel and the return air channel; The return air channel includes: a return air inlet and a return air outlet provided on the machine body, a lifting assembly for pulling the partition to move, and a return air filter assembly for processing the return air; The lifting assembly includes: an inclined plate fixedly mounted on the return air duct, an electric telescopic rod, a closing plate fixedly mounted on the electric telescopic rod, and a protective plate fixedly mounted on the closing plate; The return air filter assembly includes: a return air filter 1 rotatably mounted on the return air channel, and a return air filter 2 fixedly mounted on the return air channel; The return air filter is composed of an inclined filter plate and a horizontal filter plate; The partition is composed of: a support plate 1 fixedly mounted on the return air channel, a support plate 2 slidably connected to the return air channel, and a rotating plate rotatably mounted on the return air channel; The fresh air channel includes: a fresh air inlet and a fresh air outlet provided on the body, a fresh air processing mechanism for processing the fresh air, and a dehumidifying component for removing moisture from the fresh air; The fresh air processing mechanism includes: a filter component for filtering the fresh air, and a cleaning component for cleaning the filter component; The filter assembly includes: a fresh air primary filter slidably connected to the fresh air channel, a double-sided rack fixedly connected to the fresh air primary filter, a second gear meshing with the double-sided rack, a cam fixedly connected to the second gear, a second fresh air rear filter fixedly installed in the fresh air channel, a spring fixedly installed on the second fresh air rear filter, a push rod, and a first fresh air rear filter fixedly installed on the spring.

2. A fresh air system according to claim 1, characterized in that: The inclined plate is provided with a sliding groove, the sliding groove is slidably connected to a slider, the slider is fixedly installed on the protective plate, and the closing plate is fixedly connected to the supporting plate.

3. A fresh air system according to claim 1, characterized in that: Filter holes are provided on the fresh air rear filter 1 and the fresh air rear filter 2, and the filter holes on the fresh air rear filter 1 and the fresh air rear filter 2 are arranged in an alternating manner. The top rod corresponds to the position of the filter holes on the fresh air rear filter 1.

4. A fresh air system according to claim 1, characterized in that: The cleaning assembly includes: a baffle fixedly installed on the fresh air channel, a fixing plate fixedly installed on the baffle, a cleaning brush rotatably installed on the fresh air channel, a cleaning part for cleaning the cleaning brush, and gear 1 fixedly installed on the end of the cleaning brush; the gear 1 is engaged with the double-sided rack.

5. A fresh air system according to claim 4, characterized in that: One side of the cleaning piece is serrated, and a bottom plate is fixedly mounted on the end of the cleaning piece. A limiting groove is provided on the fixing plate, and the bottom plate is slidably connected to the fixing plate through the limiting groove.

6. A fresh air system according to claim 1, characterized in that: The dehumidifying component is fixedly installed on the fresh air channel, an air inlet and an air outlet are provided on the dehumidifying component, and a water collecting tank is fixedly installed on the dehumidifying component.

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