CN219868255U - Fresh air conditioner - Google Patents

Abstract

The utility model relates to the technical field of fresh air conditioners, in particular to a fresh air conditioner, which aims to solve the problem that the quality of air supply is poor because the existing fresh air conditioner cannot humidify and dehumidify fresh air fed indoors. The fresh air conditioner comprises a shell, a heat exchanger, a humidifying device and a dehumidifying device, wherein a fresh air channel and an air exhaust channel are formed in the shell, the heat exchanger is arranged between the fresh air channel and the air exhaust channel, the heat exchanger is arranged in such a way that wind in the fresh air channel and wind in the air exhaust channel pass through the heat exchanger, a fresh air inlet and a fresh air outlet which are communicated with the fresh air channel, and an air exhaust inlet and an air exhaust outlet which are communicated with the air exhaust channel are formed on the shell, and the humidifying device and the dehumidifying device are arranged in the fresh air channel. Based on the method, the humidifying device or the dehumidifying device can be selectively started according to the humidity in the indoor environment, so that the proper humidity of fresh air fed into the indoor is effectively ensured, and the comfort level of a user is further ensured.

Description

Fresh air conditioner

Technical Field

The utility model relates to the technical field of fresh air conditioners, and particularly provides a fresh air conditioner.

Background

The current fresh air conditioner generally comprises an air supply fan, an air exhaust fan, a heat exchanger and other accessory devices, and can input outdoor fresh air into a room, so that the oxygen content and cleanliness of the indoor air are increased, and meanwhile, indoor polluted air can be discharged to the outside through an exhaust fan, so that the content of harmful gas or substances in the indoor air is reduced. However, as the living standard of people is improved, users have higher requirements on the humidity comfort level of indoor air, and if outdoor air is directly sent into the room in different seasons, the problem that the users feel uncomfortable due to improper humidity can occur; for example, in summer, the outdoor air humidity is high, and the user feels wet, whereas in winter, the outdoor air humidity is low, and the user feels dry, and even nose bleeding and the like occur due to the drying. However, the existing fresh air conditioner cannot dehumidify fresh air fed into a room and humidify fresh air fed into the room, so that the user experience is reduced.

Accordingly, there is a need in the art for a new fresh air conditioner that solves the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to solve the technical problems, namely, the problem that the air supply quality is poor due to the fact that the existing fresh air conditioner cannot humidify and dehumidify the fresh air fed into a room.

The utility model provides a fresh air conditioner which comprises a shell, a heat exchanger, a humidifying device and a dehumidifying device, wherein a fresh air channel and an exhaust channel are formed in the shell, the heat exchanger is arranged between the fresh air channel and the exhaust channel, the heat exchanger is arranged in a way that wind in the fresh air channel and wind in the exhaust channel pass through the heat exchanger, and the humidifying device and the dehumidifying device are arranged in the fresh air channel.

In the above preferred technical solution of the fresh air conditioner, the housing is formed with a fresh air inlet and a fresh air outlet which are communicated with the fresh air channel, and an air exhaust inlet and an air exhaust outlet which are communicated with the air exhaust channel, and the humidifying device and the dehumidifying device are disposed near the fresh air outlet.

In the preferable technical scheme of the fresh air conditioner, the humidifying device comprises a water tank, a humidifying runner and a driving member, wherein the humidifying runner is arranged in the water tank, the driving member is connected with the humidifying runner, and the driving member can drive the humidifying runner to rotate so as to humidify fresh air fed into a room.

In the preferable technical scheme of the fresh air conditioner, the dehumidifying device comprises a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are connected through a refrigerant circulation loop, a water receiving disc is arranged below the evaporator, and the water receiving disc is communicated with the water tank.

In the preferable technical scheme of the fresh air conditioner, the fresh air conditioner further comprises a sterilizing device, wherein the sterilizing device is arranged in the fresh air channel, and the sterilizing device is arranged between the heat exchanger and the humidifying device and/or the dehumidifying device along the wind flowing direction.

In the preferable technical scheme of the fresh air conditioner, the fresh air conditioner further comprises a filter assembly, wherein the filter assembly comprises a first filter screen, and the first filter screen is arranged on one side, close to the exhaust inlet, of the heat exchanger; and/or the filter assembly comprises a second filter screen, and the second filter screen is arranged on one side of the heat exchanger, which is close to the fresh air inlet; and/or the filtering assembly comprises a third filter screen, and the third filter screen is arranged on one side of the heat exchanger, which is close to the fresh air outlet.

In the preferable technical scheme of the fresh air conditioner, the humidifying device further comprises a drainage pipeline, a drainage pump is arranged on the drainage pipeline, and the drainage pump is arranged to drain water in the water tank to the outside of the fresh air conditioner; and/or humidification device still includes intake pipe, intake pipe with the water tank links to each other, be provided with the inlet control valve on the intake pipe, the inlet control valve sets up to can control intake pipe with the intercommunication state between the water tank.

In the preferable technical scheme of the fresh air conditioner, the fresh air conditioner further comprises a fresh air fan, wherein the fresh air fan is arranged near the fresh air outlet, and the fresh air fan is arranged at the upstream of the humidifying device and the dehumidifying device along the wind flowing direction; and/or the fresh air conditioner further comprises an exhaust fan, and the exhaust fan is arranged near the exhaust outlet.

In the preferable technical scheme of the fresh air conditioner, a liquid level sensor is arranged in the water tank, and the liquid level sensor comprises a high liquid level floater and/or a low liquid level floater.

In the preferable technical scheme of the fresh air conditioner, the fresh air conditioner further comprises a temperature and humidity sensor, wherein the temperature and humidity sensor comprises a first temperature and humidity sensor, and the first temperature and humidity sensor is arranged near the exhaust inlet; and/or the temperature and humidity sensor comprises a second temperature and humidity sensor, wherein the second temperature and humidity sensor is arranged in the fresh air channel, and the second temperature and humidity sensor is arranged between the heat exchanger and the humidifying device and between the heat exchanger and the dehumidifying device; and/or the temperature and humidity sensor comprises a third temperature and humidity sensor which is arranged near the fresh air outlet; and/or the fresh air conditioner further comprises a PM2.5 sensor, wherein the PM2.5 sensor is arranged near the exhaust inlet.

Under the condition that the technical scheme is adopted, the fresh air conditioner comprises a shell, a heat exchanger, a humidifying device and a dehumidifying device, wherein a fresh air channel and an air exhaust channel are formed in the shell, the heat exchanger is arranged between the fresh air channel and the air exhaust channel, the heat exchanger is arranged in such a way that wind in the fresh air channel and wind in the air exhaust channel pass through the heat exchanger, a fresh air inlet and a fresh air outlet which are communicated with the fresh air channel, and an air exhaust inlet and an air exhaust outlet which are communicated with the air exhaust channel are formed in the shell, and the humidifying device and the dehumidifying device are arranged in the fresh air channel. Based on the structure, the humidifying device or the dehumidifying device can be selectively started according to the humidity in the indoor environment, so that the proper humidity of fresh air fed into the room is effectively ensured, and the comfort level of a user is further ensured.

In addition, in the preferred technical scheme of the utility model, the sterilizing device can effectively remove harmful bacteria in fresh air sent into a room, thereby effectively ensuring the life health of users.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a fresh air conditioner of the present utility model;

FIG. 2 is a schematic diagram of a first mode of operation of the fresh air conditioner of the present utility model;

FIG. 3 is a schematic diagram of a second mode of operation of the fresh air conditioner of the present utility model;

FIG. 4 is a schematic view of a third mode of operation of the fresh air conditioner of the present utility model;

reference numerals:

1. a housing;

11. a fresh air channel; 111. a fresh air inlet; 112. a fresh air outlet; 113. fresh air blower; 12. an exhaust passage; 121. an exhaust inlet; 122. an exhaust outlet; 123. an exhaust fan;

2. a heat exchanger;

3. a humidifying device;

31. a water tank; 32. a humidifying runner; 33. a driving member;

4. a dehumidifying device;

41. a compressor; 42. a condenser and an evaporator;

5. a sterilization device;

6. a filter assembly;

61. a first filter screen; 62. a second filter screen; 63. a third filter screen;

7. a draining pump;

8. a water inlet control valve;

9. a liquid level sensor;

91. a high level float; 92. a low liquid level float;

101. a first temperature and humidity sensor; 102. a second temperature and humidity sensor; 103. a third temperature and humidity sensor; 104. PM2.5 sensor; 105. and a controller.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. Those skilled in the art can adapt it as desired to suit a particular application. For example, the utility model does not limit the specific application places of the fresh air conditioner, and the fresh air conditioner can be a household fresh air conditioner or a commercial fresh air conditioner, and can be set by a person skilled in the art according to actual use requirements. Such changes in the specific application do not depart from the basic principles of the utility model and are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "inner," "outer," and the like refer to directions or positional relationships based on directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the structures must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, either a fixed connection or a removable connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a fresh air conditioner according to the present utility model. As shown in fig. 1, the fresh air conditioner of the present utility model comprises a housing 1, a heat exchanger 2, a humidifying device 3 and a dehumidifying device 4, wherein a fresh air channel 11 and an air exhaust channel 12 are formed in the housing 1, the heat exchanger 2 is arranged between the fresh air channel 11 and the air exhaust channel 12, the heat exchanger 2 is arranged such that wind in the fresh air channel 11 and wind in the air exhaust channel 12 both pass through the heat exchanger 2, and the humidifying device 3 and the dehumidifying device 4 are arranged in the fresh air channel 11.

Specifically, a fresh air inlet 111 and a fresh air outlet 112 which are communicated with the fresh air channel 11, and an air exhaust inlet 121 and an air exhaust outlet 122 which are communicated with the air exhaust channel 12 are formed on the casing 1, a first compartment, a second compartment, a third compartment and a fourth compartment are formed in the casing 1, the first compartment, the second compartment, the third compartment and the fourth compartment are isolated by a partition plate, and the heat exchanger 2 is arranged among the first compartment, the second compartment, the third compartment and the fourth compartment. The first compartment is provided with a fresh air inlet 111, the second compartment is provided with a fresh air outlet 112, the third compartment is provided with an exhaust air inlet 121, and the fourth compartment is provided with an exhaust air outlet 122. Further, the fresh air inlet 111 and the air exhaust outlet 122 are located on the same side of the casing 1, and the fresh air outlet 112 and the air exhaust inlet 121 are located on the same side of the casing 1, so as to further effectively ensure the fresh air supply effect of the fresh air conditioner.

It should be noted that the specific structures of the heat exchanger 2, the humidifying device 3 and the dehumidifying device 4 are not limited in the present utility model, the humidifying device 3 may be a humidifier, a humidifying wheel, the dehumidifying device 4 may be a heat pump dehumidifier, or a dehumidifier with a desiccant, which are not limitative. In addition, it should be noted that the specific installation positions of the humidifying device 3 and the dehumidifying device 4 are not limited in the present utility model, and the humidifying device 3 and the dehumidifying device 4 may be installed in the first compartment or the second compartment, and one of the humidifying device 3 and the dehumidifying device 4 is installed in the first compartment, and the other is installed in the second compartment, which is not limited, and may be set by a person skilled in the art according to the actual situation. Preferably, as shown in fig. 1, the humidifying device 3 and the dehumidifying device 4 are arranged near the fresh air outlet 112, so as to adjust the humidity of the fresh air just before the fresh air is sent into the room, avoid deviation of the humidity of the fresh air finally sent into the room due to passing other components (such as the heat exchanger 2) in the fresh air channel 11, and further ensure the air supply comfort of the fresh air conditioner.

With continued reference to fig. 1, in the present preferred embodiment, the humidifying device 3 includes a water tank 31, a humidifying runner 32, and a driving member 33, the humidifying runner 32 is disposed in the water tank 31, the driving member 33 is connected to the humidifying runner 32, and the driving member 33 is capable of driving the humidifying runner 32 to rotate to humidify fresh air fed into the room. Humidification runner 32 can effectively guarantee the humidification effect to the new trend, and then effectively guarantee the air supply comfort level of new trend air conditioner. It should be noted that, the specific structures of the water tank 31, the humidifying runner 32 and the driving member 33 are not limited in the present utility model, the humidifying runner 32 may be an axial-flow runner, an inclined-impact runner, an axial-extension through-flow runner, and the driving member 33 may be a linear motor or a stepper motor, which are not limited, and may be set by a person skilled in the art according to practical situations.

Further, the dehumidifying apparatus 4 includes a compressor 41, a condenser and an evaporator 42, the compressor 41 is connected with the condenser and the evaporator 42 through a refrigerant circulation loop, wherein a water receiving tray (not shown in the figure) is provided below the evaporator, and the water receiving tray is communicated with the water tank 31, based on which, water condensed by the evaporator can be supplied to the humidifying rotor 32 for use, which can reduce the consumption of water resources, simplify the structures of the humidifying apparatus 3 and the dehumidifying apparatus 4, and reduce the occupied areas of the humidifying apparatus 3 and the dehumidifying apparatus 4 in the casing 1.

Preferably, the humidifying device 3 further comprises a drain line, on which a drain pump 7 is arranged, the drain pump 7 being arranged to drain water in the water tank 31 to the outside of the fresh air conditioner. The humidifying device 3 further comprises a water inlet pipeline which is connected with the water tank 31, a water inlet control valve 8 is arranged on the water inlet pipeline, and the water inlet control valve 8 is arranged to control the communication state between the water inlet pipeline and the water tank 31. The drain pump 7 and the water inlet control valve 8 can adjust the amount of water in the water tank 31 to be supplied to the humidifying rotor 32. Of course, the drain pump 7 and the inflow control valve 8 are not limited, and may be set by one skilled in the art according to actual circumstances. Further, be provided with liquid level sensor 9 in the water tank 31, liquid level sensor 9 includes high liquid level float 91 and low liquid level float 92, and controller 105 can control the operating condition of drain pump 7 and water inlet control valve 8 according to the testing result of high liquid level float 91 and low liquid level float 92, and then effectively guarantee that the water yield in the water tank 31 is suitable, guarantees the humidification or the dehumidification effect of fresh air conditioner.

With continued reference to fig. 1, the fresh air conditioner further includes a sterilizing device 5, the sterilizing device 5 is disposed in the fresh air channel 11, and the sterilizing device 5 is disposed between the heat exchanger 2 and the humidifying device 3 and the dehumidifying device 4 along the direction of the wind flow, so as to kill harmful bacteria carried in the outdoor fresh air, and ensure the life health of the user. Of course, the specific structure of the sterilizing device 5 is not limited, and for example, the sterilizing device 5 may be an ultraviolet sterilizing lamp, or may be a filter screen with silver nanoparticles, which is not limited, so long as the sterilizing device 5 can kill harmful bacteria in the fresh air channel 11.

Further, the fresh air conditioner further comprises a filtering assembly 6, the filtering assembly 6 comprises a first filtering net 61, a second filtering net 62 and a third filtering net 63, wherein the first filtering net 61 is arranged on one side of the heat exchanger 2 close to the exhaust air inlet 121, the second filtering net 62 is arranged on one side of the heat exchanger 2 close to the fresh air inlet 111, and the third filtering net 63 is arranged on one side of the heat exchanger 2 close to the fresh air outlet 112. It will be appreciated by those skilled in the art that the specific structure of the first filter 61, the second filter 62 and the third filter 63 is not limited, and may be an activated carbon filter or a filter with sterilizing particles; in this embodiment, the first filter 61 is a primary filter, the second filter 62 is a secondary filter, and the third filter 63 is a high-efficiency filter, so as to fully ensure the quality of fresh air in the room, and further ensure the health of users.

Further preferably, the fresh air conditioner further comprises a fresh air fan 113 and an exhaust fan 123, wherein the fresh air fan 113 is arranged near the fresh air outlet 112, and the fresh air fan 113 is arranged at the upstream of the humidifying device 3 and the dehumidifying device 4 along the wind flowing direction; the exhaust fan 123 is disposed near the exhaust outlet 122 to increase the supply air speed and exhaust air speed of the fresh air conditioner, so that the indoor dirty air is rapidly exhausted to the outside and the outdoor fresh air is rapidly sent into the room.

In addition, the fresh air conditioner further comprises a temperature and humidity sensor, the temperature and humidity sensor comprises a first temperature and humidity sensor 101, a second temperature and humidity sensor 102, a third temperature and humidity sensor 103 and a PM2.5 sensor 104, and the first temperature and humidity sensor 101 is arranged near an exhaust inlet 121 and used for detecting exhaust temperature and exhaust humidity; the second temperature and humidity sensor 102 is arranged in the fresh air channel 11, and the second temperature and humidity sensor 102 is arranged between the heat exchanger 2 and the humidifying device 3 and the dehumidifying device 4 and is used for detecting the temperature and humidity of outdoor fresh air; the third temperature and humidity sensor 103 is arranged near the fresh air outlet 112 and is used for detecting the temperature and humidity of the fresh air sent to the room; the PM2.5 sensor 104 is disposed near the exhaust inlet 121 for detecting the concentration of small particles in the wind discharged indoors to outdoors.

Referring next to fig. 2 to 4, fig. 2 is a schematic view of a first operation mode of the fresh air conditioner of the present utility model, fig. 3 is a schematic view of a second operation mode of the fresh air conditioner of the present utility model, and fig. 4 is a schematic view of a third operation mode of the fresh air conditioner of the present utility model. As shown in fig. 2 to 4, the arrows in the drawing indicate the wind flowing direction, and in the first operation mode, the fresh air fan 113 and the exhaust fan 123 are simultaneously turned on, and the indoor dirty air passes through the first filter screen 61, and is discharged to the outside after passing through the heat exchanger 2; the fresh air outside is filtered by the second filter 62, the heat exchanger 2 and the third filter 63, and the clean oxygen-enriched air is sent into the room. In the second mode of operation, only fresh air fan 113 is on. In the third mode of operation, only the exhaust fan 123 is turned on. In addition, the controller 105 automatically adjusts the on/off states of the fresh air fan 113 and the exhaust fan 1213 and the on/off states of the humidifying device 3 and the dehumidifying device 4 according to the value of the PM2.5 sensor 104 and the value of the temperature and humidity sensor.

Further, regarding the humidifying device 3: the first temperature and humidity sensor 101 may detect the indoor humidity value, and when the indoor humidity value is smaller than the user set value, the humidifying device 3 is turned on. First, the inlet control valve 8 is opened, the external water source flows into the water tank 31 from the water inlet pipe, and when the liquid level reaches the position of the low level float 92, the inlet control valve 8 is closed. At this time, the humidifying rotor 32 is rotated by the driving member 33, and the water in the water tank 31 is circulated into the inside of the humidifying rotor 32. When air passes through the inside of the humidifying runner 32, moisture in the inside of the humidifying runner 32 can be brought out, so that the moisture content of the air is increased, and a humidifying function is achieved. When the indoor humidity value is equal to the user set value, the humidification wheel 32 stops working, and humidification ends. At this time, in order to prevent bacteria growth caused by excessive moisture in the water tank 31 or the water receiving tray, the drain pump 7 automatically operates for several minutes after each humidification, and water in the water tank 31 is discharged to prevent bacteria growth.

In relation to the dehumidifying apparatus 4: the first temperature and humidity sensor 101 can detect an indoor humidity value, when the indoor humidity value is larger than a user set value, the compressor 41 is started, the evaporator can be cooled, and air meets condensation, so that a fresh air dehumidification function is realized; the condensed water flows into the lower drip tray and then into the water tank 31. As the condensed water increases, the liquid level of the water tank 31 increases, and when the liquid level reaches the position of the low liquid level float 92, the drain pump 7 starts to operate, and the water in the water tank 31 is discharged from the drain line. When the indoor humidity value is equal to the user set value, the compressor 41 is turned off, and the dehumidification function is ended. If the drain pump 7 is damaged or the drain is not timely, the water level in the water tank 31 can be continuously increased, and when the water level reaches the position of the high-level floater 91, the fresh air conditioner can give an alarm to prompt that the compressor 41 is turned off, and the dehumidification function is finished, so that water leakage of equipment is prevented.

It should be noted that the present utility model does not limit the specific usage of the fresh air conditioner, and those skilled in the art can set the fresh air conditioner according to the actual situation.

Thus far, the technical solution of the present utility model has been described in connection with the alternative embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. A fresh air conditioner is characterized by comprising a shell, a heat exchanger, a humidifying device and a dehumidifying device,

a fresh air channel and an exhaust channel are formed in the shell, the heat exchanger is arranged between the fresh air channel and the exhaust channel, the heat exchanger is arranged in a way that wind in the fresh air channel and wind in the exhaust channel pass through the heat exchanger,

the humidifying device and the dehumidifying device are arranged in the fresh air channel.

2. The fresh air conditioner of claim 1, wherein the housing is formed with a fresh air inlet and a fresh air outlet which are communicated with the fresh air channel, and an air exhaust inlet and an air exhaust outlet which are communicated with the air exhaust channel,

the humidifying device and the dehumidifying device are arranged near the fresh air outlet.

3. The fresh air conditioner according to claim 2, wherein the humidifying device comprises a water tank, a humidifying runner and a driving member,

the humidifying runner is arranged in the water tank, the driving member is connected with the humidifying runner, and the driving member can drive the humidifying runner to rotate so as to humidify fresh air fed into a room.

4. The fresh air conditioner according to claim 3, wherein the dehumidifying device includes a compressor, a condenser and an evaporator,

the compressor, the condenser and the evaporator are connected through a refrigerant circulation loop, a water receiving disc is arranged below the evaporator, and the water receiving disc is communicated with the water tank.

5. The fresh air conditioner according to claim 1, further comprising a sterilizing device,

the sterilizing device is arranged in the fresh air channel, and the sterilizing device is arranged between the heat exchanger and the humidifying device and/or the dehumidifying device along the wind flowing direction.

6. The fresh air conditioner of any one of claims 2 to 5, further comprising a filter assembly,

the filter assembly comprises a first filter screen, and the first filter screen is arranged on one side of the heat exchanger, which is close to the exhaust inlet; and/or

The filter assembly comprises a second filter screen, and the second filter screen is arranged on one side of the heat exchanger, which is close to the fresh air inlet; and/or

The filter assembly comprises a third filter screen, and the third filter screen is arranged on one side of the heat exchanger, which is close to the fresh air outlet.

7. A fresh air conditioner according to claim 3, wherein the humidifying device further comprises a drain line, the drain line being provided with a drain pump arranged to drain water in the water tank to the outside of the fresh air conditioner; and/or

The humidifying device further comprises a water inlet pipeline, the water inlet pipeline is connected with the water tank, a water inlet control valve is arranged on the water inlet pipeline, and the water inlet control valve is arranged to control the communication state between the water inlet pipeline and the water tank.

8. The fresh air conditioner according to claim 2, further comprising a fresh air fan provided near the fresh air outlet, and provided upstream of the humidifying device and the dehumidifying device in a direction in which wind flows; and/or

The fresh air conditioner further comprises an exhaust fan, and the exhaust fan is arranged near the exhaust outlet.

9. A fresh air conditioner according to claim 3, wherein a liquid level sensor is provided in the water tank, the liquid level sensor comprising a high liquid level float and/or a low liquid level float.

10. The fresh air conditioner of claim 2, further comprising a temperature and humidity sensor, the temperature and humidity sensor comprising a first temperature and humidity sensor, the first temperature and humidity sensor being disposed proximate the exhaust inlet; and/or

The temperature and humidity sensor comprises a second temperature and humidity sensor which is arranged in the fresh air channel, and the second temperature and humidity sensor is arranged between the heat exchanger and the humidifying device and between the heat exchanger and the dehumidifying device; and/or

The temperature and humidity sensor comprises a third temperature and humidity sensor which is arranged near the fresh air outlet; and/or

The fresh air conditioner further comprises a PM2.5 sensor, and the PM2.5 sensor is arranged near the exhaust inlet.