CN217785309U - Fresh air conditioning system - Google Patents

Abstract

The utility model discloses a new trend air conditioning system, include: the shell is internally provided with a fresh air channel and a return air channel; the first heat exchanger is arranged in the fresh air channel; the second heat exchanger is arranged in the return air channel; the adsorption piece, one part of the adsorption piece is extended into the fresh air channel, and the other part of the adsorption piece is extended into the return air channel; the first driving mechanism is used for driving the adsorption piece to act and switching the channels where the two parts of the adsorption piece are located; and the first compressor is respectively connected with the first heat exchanger and the second heat exchanger through a first four-way valve to form a refrigerant circulating flow path. The utility model discloses a new trend air conditioning system adsorbs the piece through setting up, can be so that the part that is arranged in the new trend passageway adsorbs the piece efficient adsorption efficiency all the time when the refrigeration mode, can continuously be the new trend dehumidification. Can make the part that is arranged in the new trend passageway adsorb the piece efficient humidification ability all the time during the heating mode, can last for the new trend humidification.

Description

Fresh air conditioning system

Technical Field

The utility model relates to an air treatment technical field especially relates to a new trend air conditioning system.

Background

As the living standard of people improves, people pay more and more attention to the quality of indoor environment and need to regulate air. Air conditioning, including temperature conditioning and humidity conditioning, is increasingly being valued by homes and various businesses and offices for air quality and comfort.

At present, a fresh air humidifying technology is embodied in fresh air dehumidifiers, humidifiers and other related products, however, the dehumidifier is single in function and cannot humidify when the air humidity is low in winter, and most of the existing humidifying products need complex water supply and drainage systems and the like.

In addition, the air conditioner heats in winter, because the outdoor unit heat exchanger is used as the evaporimeter, its evaporating temperature is less than the air temperature, when outdoor humidity is great, evaporating temperature often can be less than the dew point temperature of air, consequently can appear the problem of heat exchanger surface frosting, once the outdoor unit frosts, along with the increase of frost layer thickness, its heat transfer capacity is progressively worse, the effect of heating also progressively is poor, when frosting seriously just need the switching-over defrosting, the indoor chance is given cold wind after the defrosting, remove obvious cold wind sense for the user, therefore the problem that the air conditioner heats winter frosting needs to be solved.

Disclosure of Invention

Need set up humidification device and dehydrating unit's technical problem respectively for solving among the prior art air humidity control, the utility model provides a new trend air conditioning system can solve above-mentioned problem.

In order to achieve the purpose, the utility model discloses new trend air conditioning system adopts following technical scheme to realize:

the utility model provides a new trend air conditioning system, include:

the air conditioner comprises a shell, a fan and a fan, wherein a fresh air channel and a return air channel are formed in the shell, an outdoor air inlet and an indoor air supply outlet are formed at two ends of the fresh air channel respectively, and an outdoor air outlet and an indoor return air inlet are formed at two ends of the return air channel respectively;

the first heat exchanger is arranged in the fresh air channel;

a second heat exchanger disposed in the return air passage;

the adsorption piece, one part of the said adsorption piece is stretched into the said new trend channel, another part is stretched into the said return air channel;

the first driving mechanism is used for driving the adsorption piece to act and switching the channels where the two parts of the adsorption piece are located;

and the first compressor is respectively connected with the first heat exchanger and the second heat exchanger through a first four-way valve to form a refrigerant circulating flow path.

In some embodiments of the utility model, new trend air conditioning system still includes:

and the filter screen is arranged in the fresh air channel and is close to the outdoor air inlet.

In some embodiments of the present invention, the first heat exchanger is located the adsorption member faces one side of the outdoor air inlet.

In some embodiments of the utility model, the second heat exchanger is located the adsorption element orientation one side of indoor return air inlet.

The utility model discloses an in some embodiments, the intercommunication mouth has been seted up between new trend passageway and the return air passageway, intercommunication mouth department is provided with first blast gate subassembly, first blast gate subassembly be used for with the intercommunication mouth is opened or the shutoff.

In some embodiments of the present invention, the return air channel is adjacent to the fresh air channel, and the cross sections of the return air channel and the fresh air channel enclose a circle;

the adsorption piece is a disc-shaped structure, the outer diameter of the disc-shaped structure is not larger than the inner diameter of the cross section of the air return channel and the cross section of the fresh air channel, one part of the disc-shaped structure stretches into the fresh air channel, the other part of the disc-shaped structure stretches into the air return channel, and the first driving mechanism is used for driving the disc-shaped structure to rotate around the shaft.

In some embodiments of the utility model, new trend air conditioning system still includes:

the fresh air fan is arranged in the fresh air channel and is close to the indoor air supply outlet;

and the air return fan is arranged in the air return channel and is close to the outdoor air outlet.

The utility model discloses an in some embodiments, new trend air conditioning system still includes:

the water receiving tray is arranged in the fresh air channel and is close to the bottom of the fresh air channel;

and the shell is provided with a water outlet communicated with the water receiving disc.

The utility model discloses an in some embodiments, new trend air conditioning system still includes air conditioning equipment, air conditioning equipment includes:

the outdoor unit is provided with an outdoor unit shell, an outdoor fan and an outdoor heat exchanger, wherein the outdoor fan and the outdoor heat exchanger are arranged in the outdoor unit shell;

the second air valve assembly comprises a first port, a second port and a third port, the first port is connected with the air inlet of the air conditioner, the second port is connected with the outdoor air outlet, the third port is communicated with the external atmosphere, and the second air valve assembly is controlled to communicate the first port with the second port or communicate the first port with the third port;

an indoor unit having an indoor heat exchanger therein;

and the second compressor is respectively connected with the indoor heat exchanger and the outdoor heat exchanger through a second four-way valve to form a refrigerant circulating flow path.

In some embodiments of the present invention, the second air valve assembly comprises:

the first port and the second port are respectively formed in two opposite end faces of the valve shell, and the third port is formed in the side face of the valve shell;

the second valve sheet is arranged between the first port and the second port, the position of the second valve sheet is provided with a first position and a second position, when the second valve sheet is positioned at the first position, the second valve sheet seals the outdoor air outlet and communicates the first port with the third port, and when the second valve sheet is positioned at the second position, the second valve sheet seals the third port and communicates the first port with the second port;

and the second driving mechanism is connected with the second valve plate and is used for driving the second valve plate to switch between the first position and the second position.

The technical scheme of the utility model prior art relatively has following technological effect:

the utility model discloses a new trend air conditioning system, through setting up the adsorption piece, when the refrigeration mode, outdoor air gets into new trend passageway, by the moisture in its adsorbed air when adsorbing the piece, reach the effect of dehumidification, can take away the moisture in the adsorption piece when adsorbing the piece through return air passageway exhaust air, switch through the passageway at the two parts place with the adsorption piece, can be so that the part adsorption piece that is arranged in new trend passageway efficient adsorption efficiency all the time, can continuously be new trend dehumidification. When the heating mode, outdoor air gets into the new trend passageway, can evaporate the moisture in the adsorption component when adsorbing the component, and it is indoor to discharge, reaches the effect of humidification, when air through return air passageway exhaust is through the adsorption component, by the moisture absorption that will discharge in the air in the adsorption component, switch through the passageway at two parts places that will adsorb the component, can be so that the part that is arranged in the new trend passageway adsorbs the efficient humidification ability all the time, can continuously be the new trend humidification.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of an embodiment of a fresh air conditioning system provided by the present invention;

FIG. 2 is a schematic view of a refrigerant circulation system of the fresh air conditioning system of FIG. 1;

fig. 3 is a schematic view of an operation mode of an embodiment of the fresh air conditioning system provided by the present invention;

fig. 4 is a schematic view of an operation mode of a fresh air conditioning system according to still another embodiment of the present invention;

fig. 5 is a schematic diagram of an air conditioning system in the fresh air conditioning system provided by the present invention;

fig. 6 is a schematic diagram of a new air conditioning system according to another embodiment of the present invention;

FIG. 7 is a schematic view of the second damper assembly of FIG. 6 in a first condition;

FIG. 8 is a schematic view of the second damper assembly of FIG. 6 in a second condition;

FIG. 9 is a schematic diagram of an exemplary mode of operation of the fresh air conditioning system of FIG. 6;

fig. 10 is a schematic diagram of the operation mode of the fresh air conditioning system of fig. 6 in yet another embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Example one

The embodiment provides a fresh air conditioning system, as shown in fig. 1, which includes a housing 11, a fresh air channel 111 and an air return channel 112 are formed inside the housing 11, an outdoor air inlet OA and an indoor air outlet SA are respectively formed at two ends of the fresh air channel 111, and an outdoor air outlet EA and an indoor air return RA are respectively formed at two ends of the air return channel 112.

Some embodiments of the present invention further include a refrigerant circulation flow path for cooling or heating through a refrigerant circulation, as shown in fig. 2, which is a schematic diagram of the refrigerant circulation flow path, and the air conditioning system includes a first heat exchanger 12, a second heat exchanger 13, a first compressor 14, and a first four-way valve 15.

The first heat exchanger 12 is arranged in a fresh air channel 111, the second heat exchanger 13 is arranged in a return air channel 112, and the first compressor 14 is respectively connected with the first heat exchanger 12 and the second heat exchanger 13 through a four-way valve 15 to form a refrigerant circulation flow path.

The refrigerant circulation operation principle is as follows: the refrigeration cycle of the air conditioning system is performed by using the first compressor 14, the condenser, the first expansion valve 24, and the evaporator in this application. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The first compressor compresses a refrigerant gas in a low-temperature and low-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The first expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant.

The first four-way valve 15 is electrically connected with the control module, and the control module controls the flow direction of the refrigerant by controlling the power-on and power-off states of the first four-way valve 15.

In the embodiment of the present invention, by controlling the flow direction of the refrigerant, the first heat exchanger 12 may be used as an evaporator, and the second heat exchanger 13 may be used as a condenser, or the first heat exchanger 12 may be used as a condenser, and the second heat exchanger 13 may be used as an evaporator.

Since the first heat exchanger 12 is disposed in the fresh air path 111 for exchanging heat with fresh air entering the room, the air conditioning system functions as a heater in a heating mode when the first heat exchanger 12 functions as a condenser, and functions as a cooler in a cooling mode when the first heat exchanger 12 functions as an evaporator.

Some embodiments of the present invention further include an adsorbing member 16 and a first driving mechanism, wherein a part of the adsorbing member 16 extends into the fresh air channel 111, and another part of the adsorbing member extends into the outdoor heat exchanging channel 113.

The absorbent member 16 has a certain capacity to absorb moisture.

As shown in fig. 3, when the fresh air conditioning system operates in the dehumidification mode, the first heat exchanger 12 serves as an evaporator, outdoor fresh air enters the fresh air channel 111 through the outdoor air inlet OA, and when the fresh air passes through the first heat exchanger 12, the fresh air is absorbed by the refrigerant in the evaporator, and moisture in the fresh air is condensed into water which is absorbed by a part of the absorption members located in the fresh air channel 111, so that the purpose of dehumidification is achieved. Meanwhile, the indoor return air enters the return air passage 112 from the indoor return air inlet RA, and the second heat exchanger 13 located in the return air passage 112 functions as a condenser, which can release heat to the ambient air, and the ambient temperature rises, so that the moisture absorbed in part of the absorbing members 16 located in the return air passage 112 is evaporated into steam, and the steam is discharged to the outside along with the airflow from the outdoor air outlet EA, thereby achieving the purpose of drying part of the absorbing members located in the outdoor heat exchange passage 113.

Some embodiments of the present invention further include a first driving mechanism (not shown in the drawings for angle reasons), which is disposed in the housing 11 and is used for driving the suction member 16 to move, so as to switch the channels of the suction member 16. That is, the part of the adsorbing member originally located in the fresh air channel 111 is switched to the return air channel 112, and the part of the moisture adsorbed in the fresh air channel 111 can be dried in the return air channel 112. The part of the adsorption member originally located in the return air channel 112 is switched to the fresh air channel 111, and after the part is dried in the return air channel 112, the part is switched to the fresh air channel 111 to continuously absorb moisture. Thereby, the adsorption member 16 can keep continuous adsorption capacity in the fresh air channel 111.

When the fresh air conditioning system operates in the humidification mode, the first heat exchanger 12 is used as a condenser, outdoor fresh air enters the fresh air channel 111 through the outdoor air inlet OA, and when the fresh air passes through the first heat exchanger 12, the fresh air is heated by heat released by a refrigerant in the condenser, so that the temperature of the fresh air is increased; when the air passes through the adsorbing member 16, the high-temperature fresh air can release the moisture in the adsorbing member 16, and then the air is sent into the room through the indoor air supply opening SA. Meanwhile, the indoor return air enters the return air passage 112 from the indoor return air inlet RA, the second heat exchanger 13 located in the return air passage 112 serves as an evaporator which can absorb heat of the ambient air, moisture in the ambient air is condensed and adsorbed by the partial adsorbing member 16 located in the return air passage 112 while passing through the same, and the dry low-temperature air flow is circulated to the outside from the outdoor air outlet EA, thereby achieving the object of humidifying the partial adsorbing member located in the return air passage 112.

The first driving mechanism drives the suction member 16 to operate, and switches the channels in which the two portions of the suction member 16 are respectively located. The part of the absorbing part 16 absorbing the moisture in the return air channel 112 is switched to the fresh air channel 111 for humidifying the fresh air, and the part of the absorbing part 16 absorbing the moisture released in the fresh air channel 111 is switched to the return air channel 112 for continuously absorbing the moisture, so that the invention purpose of humidifying the part of the absorbing part in the return air channel 112 is achieved.

The fresh air conditioning system of this embodiment need not to set up humidification subassembly or dehumidification subassembly respectively alone, adopts an absorption piece 16, and the refrigerant flow direction of cooperation air conditioning system can realize humidification function and dehumidification function respectively. Through setting up the switching of first actuating mechanism drive adsorption element 16 in two passageways, can realize the humidification or the dehumidification ability that adsorption element 16 lasts, need not to set up drainage structures or need set up water supply mechanism when the humidification when the dehumidification. The structure of the device is simplified, and the cost is reduced.

In some embodiments of the present invention, the return air channel 112 is adjacent to the fresh air channel 111, and the cross section of the return air channel and the fresh air channel is circular.

The utility model discloses a some embodiments, 16 preferred discoid structures of adsorption member, the external diameter of discoid structure is not more than the internal diameter of the cross section of return air passageway 112 and new trend passageway 111, and some discoid structures visit into in the new trend passageway 111, and some other visit into in the return air passageway 112, and a actuating mechanism is used for driving discoid structure pivoting. When the disk-shaped structure rotates, the channels where the two parts of the adsorbing member 16 are respectively located can be switched.

In some embodiments of the present invention, the adsorbing member 16 can be made of, but not limited to, a high molecular water absorbing material.

In some embodiments of the present invention, the first heat exchanger 12 is located at one side of the adsorption member 16 facing the outdoor air inlet OA, that is, the first heat exchanger 12 is located between the outdoor air inlet OA and the adsorption member 16.

When the fresh air conditioning system operates in a dehumidification mode, fresh air entering from an outdoor air inlet OA is cooled by the first heat exchanger 12, the temperature of the fresh air is reduced, and if the evaporation temperature is lower than the dew point temperature of the fresh air, condensate water is generated on the surface of the first heat exchanger 12: if evaporating temperature is higher than the dew point temperature of new trend this moment, then first heat exchanger 12 surface can not have the comdenstion water to produce, nevertheless under two kinds of circumstances behind first heat exchanger 12, the relative humidity of new trend all increases, then when adsorbing piece 16, the moisture that carries in the new trend is adsorbed inside adsorbing piece 16, passes through second heat exchanger 13 again. The second heat exchanger 13 is controlled to be opened or not, and then is supplied to the room through the indoor air supply outlet SA.

The utility model discloses an in some embodiments, fresh air conditioning system still includes filter screen 20, and it sets up in fresh air channel 111, and is close to the OA setting of outdoor air intake. Fresh air entering from the outdoor air inlet OA is firstly filtered by the filter screen 20 and then dehumidified or humidified. Guarantee the cleanliness factor of new trend, provide the new trend of high air quality for the user.

In some embodiments of the present invention, the second heat exchanger 13 is located on one side of the adsorption member 16 facing the indoor air return opening RA.

The return air entering the return air passage 112 from the indoor return air inlet RA first exchanges heat with the second heat exchanger 13, passes through the adsorbing member 16, humidifies the adsorbing member 16 (humidification mode) or dries the adsorbing member (dehumidification mode) to achieve the purpose of regenerating the adsorbing member 16, and then is discharged outdoors through the outdoor air outlet EA.

In some embodiments of the present invention, the fresh air conditioning system further comprises a fresh air blower 18 and a return air blower 19. The fresh air fan 18 is disposed in the fresh air passage 111 and is disposed near the indoor air supply opening SA. The fresh air fan 18 is used for exhausting outdoor fresh air to the fresh air channel 111 and conveying the fresh air to the indoor through the indoor air supply outlet SA.

The return air blower 19 is disposed in the return air passage 112 and near the outdoor air outlet EA. The return air blower 19 is for pumping the indoor return air to the return air passage 112 and discharging the indoor return air to the outside through the outdoor air outlet EA.

Example two

The utility model discloses an in some embodiments, as shown in FIG. 1, seted up intercommunication mouth 113 between fresh air channel 111 and the return air passageway 112, intercommunication mouth 113 department is provided with first blast gate subassembly 114, and first blast gate subassembly 114 is used for opening intercommunication mouth 113 or the shutoff.

When the first air valve assembly 114 blocks the communication port 113, the fresh air channel 111 and the return air channel 112 are completely blocked, and the working method thereof is described in the first embodiment, which is not described herein again. The present embodiment will mainly explain the operation principle when the first damper assembly 114 opens the communication port 113.

As shown in fig. 4, when the fresh air conditioning system works in a low-temperature and high-humidity region, the dehumidification mode without temperature reduction in the internal circulation in summer is applicable. That is, the first air valve assembly 114 is controlled to open the communication port 113, and the fresh air channel 111 and the return air channel 112 are communicated with each other. Under the effect of new trend fan 18, indoor return air gets into by indoor return air inlet RA, by second heat exchanger 112 heated, the temperature risees, when adsorbing piece 16 again, the air of high temperature can release the inside moisture of adsorbing piece 16, get into new trend passageway 111 by first blast gate subassembly 114 again, through the cooling of first heat exchanger 111 again, because first heat exchanger 111 is as the evaporimeter this moment, evaporating temperature is less than air dew point temperature, therefore moisture in the air is condensed out, then remaining few moisture in the air can be adsorbed by adsorbing piece 16, air after the drying at last is sent into indoor by indoor supply-air outlet SA.

At this time, the return air is heated by the second heat exchanger 112 and then humidified by the runner, so that the dew point temperature of the air is increased, and then moisture in the air is more easily condensed out when passing through the evaporator, so that dehumidification is facilitated.

In this mode, the outdoor intake opening OA and the outdoor exhaust opening EA are closed, the suction member 16 is not rotated, and the first damper assembly 114 is opened.

The utility model discloses an in some embodiments, fresh air conditioning system still includes the water collector (angle reason is not shown in the figure), and its setting is 111 and is close to the bottom setting of fresh air channel 111 in fresh air channel, sets up the outlet 115 with water collector 17 intercommunication on the casing 11.

The condensed water generated by the first heat exchanger 111 flows into the water receiving tray and is discharged through the water discharge port 17.

The utility model discloses an in some embodiments, new trend air conditioning system includes the valve block and is used for driving the actuating mechanism (not shown in the figure) of valve block action.

The valve plate is arranged at a communication port 113 between the fresh air channel 111 and the return air channel 112 and used for opening or blocking the communication port 113.

EXAMPLE III

The utility model discloses an in the embodiment, this new trend air conditioning system still includes air conditioning equipment, as shown in FIG. 5, air conditioning equipment includes off-premises station 21, indoor set 22, second compressor (not shown in the figure) and second blast gate subassembly 23, and off-premises station 21 has off-premises station casing 211 and sets up outdoor fan 212 and the outdoor heat exchanger 213 in off-premises station casing 211, has seted up air conditioner air intake 214 and air conditioner air exit 215 on off-premises station casing 211.

As shown in fig. 6 to 8, the second air damper assembly 23 includes a first port 231, a second port 232 and a third port 233, the first port 231 is connected to the air conditioner inlet 214, the second port 232 is connected to the outdoor air outlet EA, the third port 233 is connected to the outside atmosphere, and the second air damper assembly 23 is controlled to connect the first port 231 to the second port 232 or connect the first port 231 to the third port 233.

An indoor heat exchanger is provided in the indoor unit 22, and the second compressor is connected to the indoor heat exchanger and the outdoor heat exchanger 213 through a second four-way valve, respectively, to form a refrigerant circulation flow path.

The air conditioner achieves the purpose of refrigerating or heating indoor air through refrigerant circulation. The cooling and heating principle can refer to the refrigerant circulation operation principle in the first embodiment, and is not described herein. Different from the first embodiment, the refrigerant cycle in the first embodiment is mainly used for processing the air entering the fresh air duct 111 or the return air duct 112 to achieve the purpose of dehumidification. The air conditioning device in the embodiment is mainly used for cooling or heating indoor air.

When the second air valve assembly 23 is controlled to connect the first port 231 with the second port 232, that is, the air conditioner inlet 214 is connected with the outdoor air outlet EA, the indoor return air in the return air channel 112 can enter the outdoor unit 21 through the air conditioner inlet 214.

When the second air valve assembly 23 is controlled to connect the first port 231 with the third port 233, that is, the air inlet 214 of the air conditioner is connected with the outside atmosphere, and the outside air enters the outdoor unit 21 to exchange heat with the outdoor heat exchanger 213.

In some embodiments of the present invention, second air valve assembly 23 includes a valve housing 234, a second valve plate 235 and a second drive mechanism.

The first and second ports 231 and 232 are respectively opened on opposite end surfaces of the valve housing 234, and the third port 233 is opened on a side surface of the valve housing 234, that is, the third port 233 is located between the first and second ports 231 and 232.

As shown in fig. 7 and 8, the second valve plate 234 is disposed between the first port 231 and the second port 232, the position of the second valve plate 234 has a first position i and a second position ii, when the second valve plate 234 is located at the first position i, the second valve plate blocks the outdoor air outlet EA and communicates the first port with the third port, and when the second valve plate is located at the second position ii, the second valve plate 234 blocks the third port 233 and communicates the first port 231 with the second port 232.

The second driving mechanism is connected to the second valve plate 234 for driving the second valve plate 234 to switch between the first position i and the second position ii.

When the air conditioner system operates in linkage with the air conditioner system in winter, as shown in fig. 9, at the moment, indoor return air enters from an indoor return air inlet RA under the driving of an outdoor fan 212, is cooled through a second heat exchanger 13, the temperature is reduced, the relative humidity is increased, moisture in the air is adsorbed inside when passing through an adsorption piece 16, so that the indoor air subjected to cooling and dehumidifying enters an outdoor heat exchanger 213 of an outdoor unit of the air conditioner system through an outdoor air outlet EA, the outdoor heat exchanger 213 serves as an evaporator, heat of the indoor return air is continuously absorbed, and the indoor return air is finally discharged into the outdoor environment. In this case, the second heat exchanger 13 and the outdoor heat exchanger 213 are both evaporators. The return air fan 19 is not activated at this time.

The fresh air side: outdoor fresh air enters from an outdoor air inlet OA under the driving of the fresh air fan 18, is purified by the filter screen 20, is heated and heated by the first heat exchanger 111, passes through the adsorption piece 16, can release moisture of the adsorption piece 16 by the high-temperature fresh air, and is finally sent into a room from the indoor air supply opening SA by the fresh air fan 18. The first heat exchanger 111 now acts as a condenser. Thereby realizing the heating and humidifying of the fresh air.

The frostless operation mode of the air conditioning system is as follows:

as shown in fig. 9, when the damper blade is at position i, the outdoor heat exchanger 213 exchanges heat with outdoor air; as shown in fig. 10, when the damper blade is in position ii, the outdoor heat exchanger 213 exchanges heat with the indoor return air.

The principle of frost-free is as follows: the return air passes through the second heat exchanger 13 (evaporator) and the adsorbing element 16, and the moisture carried by the return air is adsorbed, so that the moisture content in the return air is reduced, and the dew-point temperature is also reduced, so that the evaporating temperature of the outdoor heat exchanger 213 is higher than the dew-point temperature, and the return air is not easy to frost.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A fresh air conditioning system, comprising:

the air conditioner comprises a shell, a fan and a fan, wherein a fresh air channel and a return air channel are formed in the shell, an outdoor air inlet and an indoor air supply outlet are formed at two ends of the fresh air channel respectively, and an outdoor air outlet and an indoor return air inlet are formed at two ends of the return air channel respectively;

the first heat exchanger is arranged in the fresh air channel;

a second heat exchanger disposed in the return air passage;

the adsorption piece, one part of the said adsorption piece is stretched into the said new trend channel, another part is stretched into the said return air channel;

the first driving mechanism is used for driving the adsorption piece to act and switching the channels where the two parts of the adsorption piece are located;

and the first compressor is respectively connected with the first heat exchanger and the second heat exchanger through a first four-way valve to form a refrigerant circulating flow path.

2. The fresh air conditioning system as recited in claim 1 further comprising:

and the filter screen is arranged in the fresh air channel and is close to the outdoor air inlet.

3. The fresh air conditioning system as claimed in claim 1, wherein the first heat exchanger is located on a side of the adsorption member facing the outdoor air inlet.

4. The fresh air conditioning system as recited in claim 1 wherein said second heat exchanger is located on a side of said adsorbent member facing said indoor return air opening.

5. The fresh air conditioning system according to claim 1, wherein a communication port is provided between the fresh air channel and the return air channel, a first air valve assembly is provided at the communication port, and the first air valve assembly is used for opening or blocking the communication port.

6. The fresh air conditioning system as claimed in claim 1 wherein the return air channel is adjacent to the fresh air channel and the cross-section of the return air channel and the fresh air channel enclose a circle;

the adsorption piece is a disc-shaped structure, the outer diameter of the disc-shaped structure is not larger than the inner diameter of the cross section of the return air channel and the cross section of the fresh air channel, one part of the disc-shaped structure stretches into the fresh air channel, the other part of the disc-shaped structure stretches into the return air channel, and the first driving mechanism is used for driving the disc-shaped structure to rotate around the shaft.

7. The fresh air conditioning system as claimed in claim 1, further comprising:

the fresh air fan is arranged in the fresh air channel and is close to the indoor air supply outlet;

and the air return fan is arranged in the air return channel and is close to the outdoor air outlet.

8. The fresh air conditioning system as recited in claim 1 further comprising:

the water receiving tray is arranged in the fresh air channel and is close to the bottom of the fresh air channel;

and the shell is provided with a water outlet communicated with the water receiving disc.

9. Fresh air conditioning system according to any of claims 1 to 8, further comprising an air conditioning device, the air conditioning device comprising:

the outdoor unit is provided with an outdoor unit shell, an outdoor fan and an outdoor heat exchanger, wherein the outdoor fan and the outdoor heat exchanger are arranged in the outdoor unit shell;

the second air valve assembly comprises a first port, a second port and a third port, the first port is connected with the air inlet of the air conditioner, the second port is connected with the outdoor air outlet, the third port is communicated with the external atmosphere, and the second air valve assembly is controlled to communicate the first port with the second port or communicate the first port with the third port;

an indoor unit having an indoor heat exchanger therein;

and the second compressor is respectively connected with the indoor heat exchanger and the outdoor heat exchanger through a second four-way valve to form a refrigerant circulating flow path.

10. The fresh air conditioning system as recited in claim 9 wherein said second air valve assembly comprises:

the first port and the second port are respectively formed in two opposite end faces of the valve shell, and the third port is formed in the side face of the valve shell;

the second valve sheet is arranged between the first port and the second port, the position of the second valve sheet is provided with a first position and a second position, when the second valve sheet is positioned at the first position, the second valve sheet seals the outdoor air outlet and communicates the first port with the third port, and when the second valve sheet is positioned at the second position, the second valve sheet seals the third port and communicates the first port with the second port;

and the second driving mechanism is connected with the second valve plate and is used for driving the second valve plate to switch between the first position and the second position.

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