CN212029714U - Air conditioning system and air conditioning room - Google Patents

Abstract

The utility model relates to the technical field of air conditioners, and discloses an air conditioning system and an air conditioning room, wherein the air conditioning system comprises an air conditioner external unit and an evaporator, the air conditioner external unit and the evaporator form closed loop connection through a refrigerant pipeline, and the air conditioning system also comprises an external air duct and a fan; the evaporator and the fan are arranged in an outer air duct, and the outer air duct is arranged outdoors; one end of the outer air duct is provided with an air inlet, the other end of the outer air duct is provided with an air outlet, the air inlet is used for being communicated with a first indoor chamber, and the air outlet is used for being communicated with a second indoor chamber or the first indoor chamber; the utility model discloses simple structure need not dispose one set of air conditioner respectively to indoor each room, has reduced laying cost of air conditioner by a wide margin, has effectively avoided current air conditioner indoor set to occuping of interior space, has realized the new trend of refrigeration or heating at the quick flow in indoor each room, has improved the regulation and control effect to the indoor environment on the whole, has satisfied the comfortable experience of resident's house life.

Description

Air conditioning system and air conditioning room

Technical Field

The utility model relates to an air conditioner technical field especially relates to an air conditioning system and air conditioning room.

Background

The air conditioner is used as a device for regulating and controlling indoor temperature and humidity, and comprises an air conditioner inner unit and an air conditioner outer unit which are connected in a closed loop mode through a refrigerant pipeline, wherein the air conditioner inner unit is arranged indoors, the air conditioner outer unit is arranged outdoors, and the air conditioner inner unit achieves the purpose of regulating and controlling the indoor temperature and humidity by conveying fresh air used for cooling or heating to the indoor.

However, the indoor unit of the air conditioner is usually large in size, occupies a certain indoor space, and in practical use, because the air supply efficiency of the cross-flow fan of the indoor unit of the air conditioner is low, and the divergence of fresh air is slow, the fresh air conveyed by the indoor unit of the air conditioner is difficult to distribute in the whole indoor space quickly, so that in order to meet the comfortable experience of using the air conditioner in the home life, a set of air conditioner needs to be arranged in each indoor space respectively, the input cost of the air conditioner is correspondingly increased, but the flowing effect of the cold or heat fresh air in the indoor space is not well regulated and controlled, and the large indoor space is occupied.

Therefore, for the current household life, how to better solve the conveying and diffusion efficiency of the air conditioner to each indoor fresh air so as to reduce the laying cost of the air conditioner and correspondingly improve the regulation and control effect of the fresh air flowing in each indoor space on the whole is a technical problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an air conditioning system and air conditioner room for it is big to solve the indoor space that current air conditioner occupy, and the cost of laying is high, is difficult to improve on the whole to indoor each space refrigeration or the regulation and control effect that heats the new trend and flow.

In order to solve the technical problem, an embodiment of the present invention provides an air conditioning system, including an air conditioner external unit and an evaporator, where the air conditioner external unit forms a closed-loop connection with the evaporator through a refrigerant pipeline, and further including an external air duct and a fan; the evaporator and the fan are arranged in the outer air duct, and the outer air duct is arranged outdoors; one end of the outer air duct is provided with an air inlet, and the other end of the outer air duct is provided with an air outlet, wherein the air inlet is used for being communicated with an indoor first chamber, and the air outlet is used for being communicated with an indoor second chamber or the first chamber.

Wherein the air outlet is formed around a window of the second compartment or the first compartment.

The air outlets are arranged around the edge of the window to form a plurality of air outlet surfaces communicated with the periphery of the window, the air outlet surfaces are used for outputting air flow parallel to the plane where the window is located, and the air flow forms an air wall on the inner side of the window.

The outer air duct comprises a first air duct and a second air duct; one end of the first air duct is communicated with one end of the second air duct through an evaporation chamber, and the evaporator is installed in the evaporation chamber; the fan is arranged in the first air duct and/or the second air duct; the other end of the first air channel is provided with the air inlet, and the other end of the second air channel is provided with the air outlet.

Wherein the fan includes an axial fan.

One of the opposite sides of the evaporation chamber is provided with a fresh air inlet and a fresh air outlet, and the other opposite side is provided with a refrigerant inlet and a refrigerant outlet; the fresh air inlet is communicated with the first air channel, the fresh air outlet is communicated with the second air channel, and the refrigerant inlet and the refrigerant outlet are respectively connected with the air conditioner outdoor unit in a closed loop mode through the refrigerant pipeline; the evaporator comprises a heat exchange tube bundle and a fin group, the heat exchange tube bundle and the fin group are inserted into a whole, one end of the heat exchange tube bundle is communicated with the refrigerant inlet, and the other end of the heat exchange tube bundle is communicated with the refrigerant outlet.

Wherein, a first chamber and a second chamber which are oppositely arranged are also arranged in the evaporation chamber; the first cavity is communicated with the refrigerant inlet and one end of the heat exchange tube bundle, and the second cavity is communicated with the refrigerant outlet and the other end of the heat exchange tube bundle.

The fin group comprises a plurality of fins which are arranged in a laminated mode at fixed intervals, and a plurality of tube holes and a plurality of protrusions which are arranged in an array mode are formed in the fins.

The bulge is in a water drop shape, the big end of the bulge faces the fresh air inlet, and the small end of the bulge faces the fresh air outlet; and/or a plurality of the bulges are arranged on the same side surface of the fin, and each bulge is positioned between two adjacent pipe holes.

The embodiment of the utility model provides an air conditioning room is still provided, still include as above air conditioning system.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least:

the embodiment of the utility model provides an air conditioning system, through installing the evaporimeter in the current air conditioner indoor unit in the outer wind channel of outdoor setting, constitute closed loop by the outer machine of air conditioner through refrigerant pipeline and evaporimeter and be connected to install the fan in outer wind channel, refrigerate or heat the indoor environment to this, reduced the occupation to the interior space greatly; meanwhile, when the air conditioning system is started to operate, under the action of the fan, the air sucked from the indoor compartment by the outer air duct is cooled or heated by the evaporator, the cooled or heated fresh air can return to the indoor compartment at a larger flow and a larger air speed, the air replacement efficiency of a single indoor room is ensured, the fresh air can also be input to another indoor compartment, and the flow of the cooled or heated fresh air between different indoor rooms is accelerated by utilizing the air pressure difference between the two indoor compartments, so that the regulation and control effect of the flow of the cooled or heated fresh air of each indoor room is improved integrally.

The embodiment of the utility model provides an air conditioning room based on above-mentioned air conditioning system, simple structure need not dispose one set of air conditioner respectively to each indoor room, has effectively avoided current air conditioner indoor unit to the occuping of interior space to reduced laying cost of air conditioner by a wide margin, realized the new trend of refrigeration or heating at the fast flow in each indoor room, improved the regulation and control effect to the indoor environment on the whole, satisfied resident's life-saving comfortable experience.

Drawings

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

Fig. 1 is a schematic view of an installation structure of an air conditioning system in an air conditioning room according to an embodiment of the present invention;

fig. 2 is a schematic sectional view of an evaporator installed in an evaporation chamber according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a fin according to an embodiment of the present invention.

Description of reference numerals: 1. a first compartment; 2. a second compartment; 3. a first air duct; 4. a second air duct; 5. a first axial fan; 6. a second axial fan; 7. an air inlet; 8. an air outlet; 9. an evaporator; 91. a heat exchange tube bundle; 92. a fin set; 10. an evaporation chamber; 101. a fresh air inlet; 102. a fresh air outlet; 103. a refrigerant inlet; 104. a refrigerant outlet; 105. an air inlet chamber; 106. a heat exchange chamber; 107. an air outlet chamber; 108. a first chamber; 109. a second chamber; 11. a refrigerant pipeline; 12. an air conditioner outdoor unit; 13. a window; 14. opening and closing the door; 15. a fin; 151. a tube hole; 152. and (4) protruding.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the embodiment provides an air conditioning system, which includes an air conditioner external unit 12 and an evaporator 9, where the air conditioner external unit 12 forms a closed loop connection with the evaporator 9 through a refrigerant pipeline 11, and further includes a fan and an external air duct; the evaporator 9 and the fan are arranged in an outer air duct, and the outer air duct is arranged outdoors; one end of the outer air duct is provided with an air inlet 7, the other end of the outer air duct is provided with an air outlet 8, the air inlet 7 is used for being communicated with the indoor first chamber 1, the air outlet 8 is used for being communicated with the indoor second chamber 2, and the air outlet 8 can also be communicated with the first chamber 1.

Specifically, for the air conditioning system shown in this embodiment, the evaporator 9 in the existing air conditioning indoor unit is installed in an outdoor air duct, the air conditioning outdoor unit 12 forms a closed-loop connection with the evaporator 9 through the refrigerant pipeline 11, and a fan is installed in the external air duct, so as to cool or heat the indoor environment, thereby greatly reducing the occupation of the indoor space; meanwhile, when the air conditioning system is started to operate, under the action of the fan, the air sucked from the indoor first compartment 1 by the outer air duct is cooled or heated by the evaporator 9, on one hand, the cooled or heated fresh air returns to the first compartment 1 at a high flow rate and high air speed, so that the replacement efficiency of the air in the first compartment 1 is ensured; on the other hand, as the air in the first compartment 1 is continuously sucked, the cooled or heated fresh air is continuously input into the second compartment 2, so that an air pressure difference is generated between two indoor rooms, and therefore, the flow of the cooled or heated fresh air between different indoor rooms can be accelerated by utilizing the air pressure difference formed between the first compartment 1 and the second compartment 2, and the regulation and control effect on the flow of the cooled or heated fresh air of each indoor room is improved integrally.

It should be noted here that the first compartment 1 and the second compartment 2 are both represented as rooms indoors, for example: living room, bedroom, study, etc. An opening/closing door 14 shown in fig. 1 may be provided between the first compartment 1 and the second compartment 2, and the communication state between the first compartment 1 and the second compartment 2 is controlled by opening/closing the door 14, but it is obvious that the first compartment 1 and the second compartment 2 may be communicated with each other through other rooms in the room, and the present invention is not limited thereto.

Meanwhile, the evaporator 9 is a heat exchange device known in the art, and is connected with an air conditioner external unit 12 through a refrigerant pipeline 11 to form a closed loop, so as to form a refrigerant circulation system of the air conditioner known in the art, wherein the air conditioner external unit 12 is internally provided with a compressor, a condenser, a throttling element and a four-way valve, and correspondingly, the compressor, the evaporator 9, the throttling element, the condenser and the four-way valve can be connected through the refrigerant pipeline 11 to form a closed loop, so that under the switching of the four-way valve, the evaporator 9 can be used for heating fresh air flowing in an outer air duct and can also be used for refrigerating fresh air flowing in the outer air duct. Of course, the evaporator 9 can also be connected to a waste heat generating device known in the art by a circulation line, for example: the waste heat generating device can be a solar heat collector or a surface water heat exchanger for supplying heat, high-temperature steam or hot water is circularly supplied to the evaporator 9 through the circulating pipeline, and the waste heat generating device can also be a cooling tower or a ground heat exchanger for supplying cold, and low-temperature cooling water is circularly supplied to the evaporator 9 through the circulating pipeline, so that low-grade energy sources are reused, and a better energy-saving effect is achieved.

In addition, in this embodiment, the air inlets 7 are not limited to be disposed in the first compartment 1, and the air outlets 8 are not limited to be disposed in the first compartment 1 or the second compartment 2, and the plurality of air inlets 7 may be disposed in a plurality of indoor rooms respectively, and correspondingly, the plurality of air outlets 8 may be disposed in other indoor rooms respectively, so that when the air conditioning system is started to operate, a pressure difference is formed between different indoor rooms, so as to accelerate a diffusion rate of the gas after heat exchange between different indoor rooms, thereby improving an overall regulation and control effect on an indoor environment. During actual design, an air valve can be arranged at the corresponding air inlet 7 or air outlet 8 of each indoor room, so that the requirement for independently regulating and controlling the air flow of each indoor room is met.

In order to ensure the air suction and air supply effects of the outer air duct on each indoor room and facilitate the installation and use of the fan in the outer air duct, the fan is preferably an axial fan in the embodiment, and the number and the positions of the axial fans are not particularly limited. Obviously, the air supply efficiency of the axial flow fan is far higher than that of the cross flow fan, so that the indoor conveying capacity and conveying speed of the fresh air subjected to refrigeration or heating can be ensured, and the diffusion efficiency of the fresh air among different indoor rooms can be further ensured.

In one of the preferred embodiments, the outlet 8 is intended to be formed around a window 13 of the second compartment 2 or the first compartment 1.

Specifically, the fresh air output from the air outlet 8 for cooling or heating is discharged to the area where the window 13 is located. Since a window is usually disposed in each room of a home to ensure good indoor ventilation and lighting effects, obviously, the air flow from the outdoor to the indoor through the window is perpendicular to the plane of the window, or the main flow direction of the air flow is perpendicular to the plane of the window, so that the blowing effect of the air flow passing through the window 13 perpendicularly can be utilized to assist the dispersion of fresh air in the indoor space.

Preferably, the outer air duct in this embodiment includes a first air duct 3 and a second air duct 4; one end of the first air duct 3 is communicated with one end of the second air duct 4 through an evaporation chamber 10, and an evaporator 9 is arranged in the evaporation chamber 10; an axial fan is arranged in the first air duct 3 and/or the second air duct 4; an air inlet 7 is arranged at one end of the first air duct 3 far away from the second air duct 4, and an air outlet 8 is arranged at one end of the second air duct 4 far away from the first air duct 3.

Specifically, as shown in fig. 1, the air inlet 7 is located in the first compartment 1, the air outlet 8 is located in the second compartment 2, the first axial fan 5 is installed in the first air duct 3, and the second axial fan 6 is installed in the second air duct 4, so that under the combined action of the first axial fan 5 and the second axial fan 6, the suction volume of the outer air duct through the air inlet 7 can be greatly increased, and the conveying volume and the conveying speed of fresh air in the outer air duct can be increased, so as to perform heat exchange with the evaporator 9 in the evaporation chamber 10. Of course, an axial fan may be separately installed in the first air duct 3 or the second air duct 4, and is not particularly limited herein.

Meanwhile, the evaporator 9 is arranged in the evaporation chamber 10, on one hand, the evaporator 9 is conveniently and stably mounted, on the other hand, the fresh air with larger capacity can be accommodated in the evaporation chamber 10, and therefore the evaporator 9 and the fresh air in the evaporation chamber 10 can well realize heat exchange. As shown in fig. 1, the present embodiment further provides an evaporation chamber 10 on a wall of a house,

preferably, in another embodiment, the plurality of air outlets 8 are arranged around the edge of the window 13 to form a plurality of air outlet surfaces communicating with the periphery of the window 13, the plurality of air outlet surfaces are used for outputting an air flow parallel to the plane of the window 13, the air flow forms an air wall on the inner side of the window 13, wherein the inner side of the window 13 refers to a side of the window 13 close to the indoor space.

Specifically, as shown in fig. 1, one end of the second air duct 4, which is far away from the first air duct 3, is arranged around four sides of the window 13, and the plurality of air outlets 8 are divided into four groups and are respectively disposed on the second air ducts 4 corresponding to the four sides of the window 13. Therefore, when the air outlet direction of the air outlets 8 is parallel to the plane of the window 13, the four air outlets 8 output fresh air towards the middle of the window 13, so that an air wall parallel to the window 13 is formed in the second chamber 2. When the window 13 is opened, the wind flow conveyed from the window 13 to the second compartment 2 directly acts on the wind wall, so that the indoor diffusion efficiency of the fresh wind conveyed from the wind outlet 8 to the second compartment 2 is greatly improved.

Meanwhile, the fresh air output by the air outlets 8 forms an air wall on the inner side of the window 13, and the high-speed fresh air with large capacity is effectively prevented from being directly conveyed into the second chamber 2, so that the human body is prevented from being directly blown and discomfort of the human body is avoided, and comfortable experience of resident household life is enhanced.

Preferably, as shown in fig. 2, in the present embodiment, one of the opposite sides of the evaporation chamber 10 is provided with a fresh air inlet 101 and a fresh air outlet 102 which are oppositely arranged, and the other opposite side is provided with a refrigerant inlet 103 and a refrigerant outlet 104 which are oppositely arranged; the fresh air inlet 101 is communicated with one end of the first air duct 3, the fresh air outlet 102 is communicated with one end of the second air duct 4, and the refrigerant inlet 103 and the refrigerant outlet 104 can be respectively connected with the air conditioner external unit 12 through the refrigerant pipeline 11 in a closed loop manner; the evaporator 9 includes a heat exchange tube bundle 91 and a fin group 92, the heat exchange tube bundle 91 and the fin group 92 are inserted into a whole, one end of the heat exchange tube bundle 91 is communicated with a refrigerant inlet 103, and the other end is communicated with a refrigerant outlet 104.

Specifically, in the structure shown in fig. 2, the fresh air inlet 101 is disposed on the right side of the evaporation chamber 10, the fresh air outlet 102 is disposed on the left side of the evaporation chamber 10, and the evaporation chamber 10 includes an air inlet chamber 105, a heat exchange chamber 106, and an air outlet chamber 107 sequentially disposed along the conveying direction of the fresh air, the evaporator 9 is installed in the heat exchange chamber 106, and along the conveying direction of the fresh air, the air inlet chamber 105 is divergent, and the air outlet chamber 107 is convergent, so that the fresh air conveyed in the first air duct 3 enters the air inlet chamber 105 through the fresh air inlet 101 and exchanges heat with the evaporator 9 in the heat exchange chamber 106, and the fresh air after heat exchange passes through the air outlet chamber 107 and the fresh air outlet 102 and is conveyed to the second air duct 4.

Meanwhile, the refrigerant inlet 103 is disposed at the upper side of the evaporation chamber 10, and the refrigerant outlet 104 is disposed at the lower side of the evaporation chamber 10, so that when the outdoor unit 12 of the air conditioner operates through the closed loop system formed by the refrigerant pipeline 11 and the evaporator 9, the evaporator 9 can conduct heat to the refrigerant flowing circularly, thereby achieving the purpose of heating or cooling the fresh air passing through the surface of the evaporator.

It should be noted that, for the evaporator 9, each heat exchange tube in the heat exchange tube bundle 91 may be a copper tube with good heat conduction performance, and each fin 15 in the fin group 92 may be a copper fin, a steel fin, an aluminum fin or a steel-aluminum composite fin, which is not limited in particular.

Preferably, in the present embodiment, a first chamber 108 and a second chamber 109 are further disposed in the evaporation chamber 10, and the evaporator 9 is installed in the corresponding heat exchange chamber 106 between the first chamber 108 and the second chamber 109; the first chamber 108 communicates the refrigerant inlet 103 with one end of the heat exchanger tube bundle 91, and the second chamber 109 communicates the refrigerant outlet 104 with the other end of the heat exchanger tube bundle 91.

Specifically, as shown in fig. 2, by providing the first cavity 108 and the second cavity 109, both ends of the heat exchange tube bundle 91 can be fixedly mounted in an integrated manner, so that the mounting structure of the heat exchange tube bundle 91 is greatly simplified, the first cavity 108 can uniformly convey the refrigerant from one end of the heat exchange tube bundle 91, and the second cavity 109 can uniformly recover the refrigerant subjected to heat exchange from the other end of the heat exchange tube bundle 91, so that the uniformity of conveying the refrigerant in each heat exchange tube is ensured.

Preferably, as shown in fig. 2, in order to ensure that the fresh air can exchange heat with the fin group 92 well, the fin group 92 in this embodiment includes a plurality of fins 15, and the plurality of fins are arranged in a stacked manner at fixed intervals, so that the fresh air can pass through the gap between any two adjacent fins 15 and can contact the surface of each fin 15.

Further, as shown in fig. 3, each fin 15 is provided with a plurality of pipe holes 151 and a plurality of protrusions 152, and the plurality of pipe holes 151 and the plurality of protrusions 152 are arranged in an array on the fin 15. Thus, when a plurality of fins 15 are stacked to form the fin group 92, a plurality of tube holes are formed in the fin group 92 in an array, so that the fin group 92 and the heat exchange tube bundle 91 are integrally inserted to form the evaporator 9 shown in the present embodiment.

Meanwhile, as shown in fig. 3, since the plurality of protrusions 152 are arranged on the surfaces of the fins 15, when fresh air flows in the gap between two adjacent fins 15, the surface of each protrusion 152 forms a wall attachment effect (coanda effect) on the fresh air, which is greatly beneficial to the contact heat exchange between the fresh air and the surfaces of the fins 15.

Preferably, in this embodiment, the protrusion 152 is in a drop shape, a large end of the protrusion 152 faces the fresh air inlet 101, and a small end of the protrusion 152 faces the fresh air outlet 102; and/or, a plurality of protrusions 152 are arranged on the same side of the fin 15, each protrusion 152 being located between two adjacent tube holes 151.

Specifically, since the curvature of the large end of the drop-shaped protrusion 152 is small and the curvature of the small end is large, when fresh air flows from the large end to the small end of the protrusion 152, a wall attachment effect is more easily generated at the large end of the protrusion 152, and the fresh air is dispersed at the small end of the protrusion 152. Further, because a plurality of protrusions 152 are arranged on the same side of the fins 15, when the fresh air flows in the gap between two adjacent fins 15, the fresh air flows forwards along the serpentine curve, which is greatly beneficial to the contact between the fresh air and the surfaces of two adjacent fins 15, thereby better performing contact heat exchange.

In addition, each protrusion 152 is arranged between two adjacent pipe holes 151, so that the fresh air can contact and exchange heat with each heat exchange pipe in the forward conveying process.

Preferably, this embodiment further provides an air-conditioned room, including the air-conditioning system described in the above embodiment.

Specifically, as shown in fig. 1, the air-conditioned room includes a first compartment 1 and a second compartment 2 which are communicated with each other; the air inlet 7 and the air outlet 8 are respectively arranged in the first compartment 1 and the second compartment 2, wherein in fig. 1, the air inlet 7 is specifically arranged in the first compartment 1, and the air outlet 8 is arranged in the second compartment 2. Of course, the air inlet 7 may also be arranged in the second compartment 2, and correspondingly, the air outlet 8 may also be arranged in the first compartment 1, which is not particularly limited.

Therefore, when the air conditioning system starts to operate, air in the first compartment 1 is continuously sucked, and the sucked air is continuously input into the second compartment 2 after being subjected to heat exchange by the evaporator 9, so that air pressure difference is generated between two rooms in the room, and the diffusion rate of the heat-exchanged air among different rooms in the room is accelerated.

It should be noted that the opening and closing door 14 shown in fig. 1 may be provided between the first compartment 1 and the second compartment 2, and the first compartment 1 and the second compartment 2 may also be communicated with each other through a plurality of rooms in the compartments, which are communicated with each other, and are not particularly limited herein.

The air-conditioning room that this embodiment provided, simple structure need not dispose one set of air conditioner respectively to each indoor room, has effectively avoided current air conditioner indoor set to the occupation of interior space to having reduced laying cost of air conditioner by a wide margin, having realized the new trend of refrigeration or heating and in the fast flow in each indoor space, improved the regulation and control effect to the indoor environment on the whole, satisfied resident's life-saving comfortable experience.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An air conditioning system comprises an air conditioner external unit and an evaporator, wherein the air conditioner external unit is connected with the evaporator in a closed loop manner through a refrigerant pipeline,

the air conditioner also comprises an outer air duct and a fan;

the evaporator and the fan are arranged in the outer air duct, and the outer air duct is arranged outdoors;

one end of the outer air duct is provided with an air inlet, and the other end of the outer air duct is provided with an air outlet, wherein the air inlet is used for being communicated with an indoor first chamber, and the air outlet is used for being communicated with an indoor second chamber or the first chamber.

2. The air conditioning system of claim 1,

the air outlet is formed around a window of the second compartment or the first compartment.

3. The air conditioning system of claim 2,

the air outlets are arranged around the edge of the window to form a plurality of air outlet surfaces communicated with the periphery of the window, and the plurality of air outlet surfaces are used for outputting air flow parallel to the plane where the window is located.

4. Air conditioning system according to any of claims 1 to 3,

the outer air duct comprises a first air duct and a second air duct;

one end of the first air duct is communicated with one end of the second air duct through an evaporation chamber, and the evaporator is installed in the evaporation chamber;

the fan is arranged in the first air duct and/or the second air duct;

the other end of the first air channel is provided with the air inlet, and the other end of the second air channel is provided with the air outlet.

5. The air conditioning system of claim 4,

the fan includes an axial fan.

6. The air conditioning system of claim 4,

one of the opposite sides of the evaporation chamber is provided with a fresh air inlet and a fresh air outlet, and the other opposite side is provided with a refrigerant inlet and a refrigerant outlet;

the fresh air inlet is communicated with the first air channel, the fresh air outlet is communicated with the second air channel, and the refrigerant inlet and the refrigerant outlet are respectively connected with the air conditioner outdoor unit in a closed loop mode through the refrigerant pipeline;

the evaporator comprises a heat exchange tube bundle and a fin group, the heat exchange tube bundle and the fin group are inserted into a whole, one end of the heat exchange tube bundle is communicated with the refrigerant inlet, and the other end of the heat exchange tube bundle is communicated with the refrigerant outlet.

7. The air conditioning system of claim 6,

the evaporation chamber is also internally provided with a first chamber and a second chamber which are oppositely arranged;

the first cavity is communicated with the refrigerant inlet and one end of the heat exchange tube bundle, and the second cavity is communicated with the refrigerant outlet and the other end of the heat exchange tube bundle.

8. The air conditioning system of claim 6,

the fin group comprises a plurality of fins which are arranged in a laminated mode at fixed intervals, and a plurality of tube holes and a plurality of bulges which are arranged in an array mode are formed in the fins.

9. The air conditioning system of claim 8,

the bulge is in a water drop shape, the big end of the bulge faces the fresh air inlet, and the small end of the bulge faces the fresh air outlet;

and/or a plurality of the bulges are arranged on the same side surface of the fin, and each bulge is positioned between two adjacent pipe holes.

10. An air-conditioned room, further comprising an air-conditioning system as claimed in any one of claims 1 to 9.

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