Air conditioning system and air conditioned house

Abstract

The application relates to the technical field of air conditioners, and discloses an air conditioner system and an air conditioner house, wherein the air conditioner system comprises an air conditioner outdoor unit and an evaporator, the air conditioner outdoor unit is connected with the evaporator through a refrigerant pipeline to form a closed loop, further comprises an outer air duct and a fan; the evaporator and the fan are installed 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 is provided with an air outlet; the air inlet is used for being communicated with a first room in the house, and the air outlet is used for being communicated with a second room or the first room in the house; the application has the advantages of simple structure, no need to arrange a set of air conditioner for each room in the house, greatly reduced air conditioner layout cost, effectively avoided occupation of indoor space by the current air conditioner indoor unit, realized quick flow of fresh air for cooling or heating in each room in the house, improved overall indoor environment regulation effect, and satisfied comfortable experience of residents in home life.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and in particular to an air conditioning system and an air-conditioned room. Background Technology

[0002] An air conditioner, as a device for regulating indoor temperature and humidity, includes an indoor unit and an outdoor unit connected in a closed loop via refrigerant piping. The indoor unit is located indoors, and the outdoor unit is located outdoors. The indoor unit regulates indoor temperature and humidity by supplying fresh air for cooling or heating into the room.

[0003] However, air conditioner indoor units are usually quite large, taking up a certain amount of indoor space. In actual use, due to the relatively low air delivery efficiency of the cross-flow fan in the indoor unit and the slow dispersion of fresh air, it is difficult for the fresh air delivered by the indoor unit to be quickly distributed throughout the indoor space. Therefore, in order to meet the comfort experience of using air conditioners in home life, it is necessary to install an air conditioner in each indoor space. This increases the investment cost of air conditioners, but does not achieve a good effect of controlling the flow of fresh air in the room for cooling or heating, and occupies a large amount of indoor space.

[0004] Therefore, for current home life, how to better solve the problem of air conditioner's efficiency in delivering and diffusing fresh air to various indoor spaces, so as to reduce the installation cost of air conditioners and correspondingly improve the overall control effect of fresh air flow in various indoor spaces, is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] This invention provides an air conditioning system and an air-conditioned room to address the problems of existing air conditioners occupying large indoor spaces, having high installation costs, and being unable to improve the overall control effect of cooling or heating fresh air flow in various indoor spaces.

[0006] To address the aforementioned technical problems, this invention provides an air conditioning system, including an outdoor unit and an evaporator. The outdoor unit is connected to the evaporator in a closed loop via refrigerant piping. The system also includes an external air duct and a fan. The evaporator and the fan are installed within the external air duct, which is located outdoors. One end of the external air duct has an air inlet, and the other end has an air outlet. The air inlet communicates with a first room inside the room, and the air outlet communicates with a second room or the first room inside the room.

[0007] The air outlet is designed to be located around the window of the second room or the first room.

[0008] The air outlets are arranged around the edge of the window to form multiple air outlet surfaces that are connected to the four sides of the window. The multiple air outlet surfaces are used to output airflow parallel to the plane where the window is located, and the airflow forms a wind wall on the inner side of the window.

[0009] The external air duct includes a first air duct and a second air duct; one end of the first air duct and one end of the second air duct are connected through an evaporation chamber, and the evaporator is installed in the evaporation chamber; the fan is installed in the first air duct and / or the second air duct; the air inlet is provided at the other end of the first air duct, and the air outlet is provided at the other end of the second air duct.

[0010] The fan includes an axial flow fan.

[0011] The evaporator has a fresh air inlet and a fresh air outlet on one opposite side, and a refrigerant inlet and a refrigerant outlet on the other opposite side. The fresh air inlet is connected to the first air duct, and the fresh air outlet is connected to the second air duct. The refrigerant inlet and the refrigerant outlet are respectively connected to the air conditioner outdoor unit in a closed loop through the refrigerant pipeline. The evaporator includes a heat exchange tube bundle and a fin assembly. The heat exchange tube bundle and the fin assembly are inserted into each other. One end of the heat exchange tube bundle is connected to the refrigerant inlet, and the other end is connected to the refrigerant outlet.

[0012] The evaporation chamber is further provided with a first chamber and a second chamber arranged opposite to each other; the first chamber connects the refrigerant inlet to one end of the heat exchange tube bundle, and the second chamber connects the refrigerant outlet to the other end of the heat exchange tube bundle.

[0013] The fin assembly includes multiple fins, which are stacked at a fixed interval. The fins are provided with multiple tube holes and multiple protrusions arranged in an array.

[0014] The protrusion is teardrop-shaped, with the larger end of the protrusion facing the fresh air inlet and the smaller end of the protrusion facing the fresh air outlet; and / or, a plurality of the protrusions are arranged on the same side of the fin, with each protrusion located between two adjacent pipe holes.

[0015] The present invention also provides an air-conditioned room, which further includes the air conditioning system described above.

[0016] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0017] The air conditioning system provided in this invention installs the evaporator of the indoor unit of the air conditioner in an outdoor duct. The outdoor unit is connected to the evaporator in a closed loop via refrigerant piping, and a fan is installed in the duct to cool or heat the indoor environment, greatly reducing the space occupied. Simultaneously, when the air conditioning system is running, the air drawn from the indoor room by the fan is cooled or heated by the evaporator. The cooled or heated fresh air can then return to the room with a large flow rate and speed, ensuring efficient air exchange in a single room. It can also be introduced into another room, utilizing the pressure difference between the two rooms to accelerate the flow of cooled or heated fresh air between different rooms, thereby improving the overall control of the flow of cooled or heated fresh air in each room.

[0018] The air-conditioned room based on the above-mentioned air conditioning system provided in this embodiment of the invention has a simple structure. It does not require a separate air conditioner for each room, effectively avoiding the space occupation of the current air conditioning indoor unit and greatly reducing the installation cost of the air conditioner. It realizes the rapid flow of fresh air for cooling or heating in each room, thereby improving the overall control effect of the indoor environment and meeting the comfort experience of residents' home life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation structure of the air conditioning system in an air-conditioned room according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the evaporator installed in the evaporation chamber according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the fin structure shown in an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 1. First compartment; 2. Second compartment; 3. First air duct; 4. Second air duct; 5. First axial fan; 6. Second axial fan; 7. Air inlet; 8. Air outlet; 9. Evaporator; 91. Heat exchange tube bundle; 92. Fin assembly; 10. Evaporation chamber; 101. Fresh air inlet; 102. Fresh air outlet; 103. Refrigerant inlet; 104. Refrigerant outlet; 105. Air inlet chamber; 106. Heat exchange chamber; 107. Air outlet chamber; 108. First chamber; 109. Second chamber; 11. Refrigerant piping; 12. Outdoor unit of air conditioner; 13. Window; 14. Door; 15. Fin; 151. Pipe hole; 152. Protrusion. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] See Figure 1 This embodiment provides an air conditioning system, including an outdoor unit 12 and an evaporator 9. The outdoor unit 12 is connected to the evaporator 9 in a closed loop through a refrigerant pipeline 11. The system also includes a fan and an external air duct. The evaporator 9 and the fan are installed in the external air duct, which is set outdoors. One end of the external air duct is provided with an air inlet 7, and the other end is provided with an air outlet 8. The air inlet 7 is used to communicate with the first room 1 indoors, and the air outlet 8 is used to communicate with the second room 2 indoors. The air outlet 8 can also communicate with the first room 1.

[0027] Specifically, in the air conditioning system shown in this embodiment, by installing the evaporator 9, which is a conventional indoor unit, in an outdoor duct, and connecting the outdoor unit 12 to the evaporator 9 in a closed loop via refrigerant piping 11, and installing a fan in the outdoor duct, the indoor environment is cooled or heated, greatly reducing the space occupied. Simultaneously, when the air conditioning system is started, under the action of the fan, the air drawn from the first room 1 in the outdoor duct is cooled or heated after passing through the evaporator 9. The fresh air is returned to the first room 1 with a large flow rate and wind speed, ensuring the air replacement efficiency in the first room 1. On the other hand, as the air in the first room 1 is continuously drawn in, and the cooled or heated fresh air is continuously introduced into the second room 2, a pressure difference is generated between the two rooms. This pressure difference between the first room 1 and the second room 2 can be used to accelerate the flow of cooled or heated fresh air between different rooms in the room, which facilitates the overall improvement of the control effect of the flow of cooled or heated fresh air in each room in the room.

[0028] It should be noted that both "Room 1" and "Room 2" refer to indoor rooms, such as living rooms, bedrooms, and studies. Room 1 and Room 2 can be separated by... Figure 1 The switch door 14 shown is used to control the connection between the first room 1 and the second room 2. Obviously, the first room 1 and the second room 2 can also be connected through other rooms in the room, which is not specifically limited here.

[0029] Meanwhile, the evaporator 9 is a heat exchange device known in the art. It is connected to the outdoor unit 12 of the air conditioner in a closed loop through the refrigerant pipeline 11, which is equivalent to forming the refrigerant circulation system of the air conditioner known in the art. The outdoor unit 12 of the air conditioner is equipped with a compressor, a condenser, a throttling element and a four-way valve. Correspondingly, the compressor, evaporator 9, throttling element, condenser and four-way valve can be connected through the refrigerant pipeline 11 to form a closed loop. Thus, under the switching of the four-way valve, the evaporator 9 can be used to heat the fresh air flowing in the external air duct or to cool the fresh air flowing in the external air duct. Of course, the evaporator 9 can also be connected to a waste heat generation device known in the art through a circulation pipeline. For example, the waste heat generation device can be a solar collector or a surface water heat exchanger for heating, and supply high-temperature steam or hot water to the evaporator 9 through a circulation pipeline. The waste heat generation device can also be a cooling tower or a buried pipe heat exchanger for cooling, and supply low-temperature cooling water to the evaporator 9 through a circulation pipeline, so as to realize the reuse of low-grade energy and achieve better energy-saving effect.

[0030] Furthermore, in this embodiment, the air inlet 7 is not limited to being located in the first room 1, and the air outlet 8 is not limited to being located in the first room 1 or the second room 2. Multiple air inlets 7 can be installed in multiple rooms within the room, and correspondingly, multiple air outlets 8 can be installed in other rooms within the room. This allows the pressure difference between different rooms to be utilized when the air conditioning system starts operating, accelerating the diffusion rate of the heat-exchanged gas between different rooms, thereby improving the overall control effect on the indoor environment. In practical design, a damper can be installed at the corresponding air inlet 7 or air outlet 8 in each room to meet the independent airflow control requirements of each room.

[0031] To ensure effective air intake and exhaust from the external duct to all rooms and to facilitate the installation and use of the fan within the duct, this embodiment preferably uses axial flow fans, without specifying the number or location of the axial flow fans. Clearly, the air delivery efficiency of axial flow fans is far higher than that of cross-flow fans. This ensures the volume and speed of fresh air delivered indoors after cooling or heating, and further ensures the diffusion efficiency of this fresh air between different rooms.

[0032] In one preferred embodiment, the air outlet 8 is formed around the window 13 of the second room 2 or the first room 1.

[0033] Specifically, the fresh air output from the air outlet 8, whether cooling or heating, is directed towards the area where the window 13 is located. Since windows are typically installed in every room of a home to ensure good indoor ventilation and lighting, the airflow entering the room from the outside through the window is perpendicular to the plane of the window, or the main direction of this airflow is perpendicular to the plane of the window. Therefore, the blowing effect of the airflow perpendicular to the window 13 can be used to assist in the dispersion of fresh air within the indoor space.

[0034] Preferably, in this embodiment, the external air duct includes a first air duct 3 and a second air duct 4; one end of the first air duct 3 and one end of the second air duct 4 are connected through an evaporation chamber 10, and an evaporator 9 is installed in the evaporation chamber 10; an axial flow fan is installed in the first air duct 3 and / or the second air duct 4; an air inlet 7 is provided at the end of the first air duct 3 away from the second air duct 4, and an air outlet 8 is provided at the end of the second air duct 4 away from the first air duct 3.

[0035] Specifically, such as Figure 1As shown, the air inlet 7 is located in the first chamber 1, and the air outlet 8 is located in the second chamber 2. A first axial fan 5 is installed in the first air duct 3, and a second axial fan 6 is installed in the second air duct 4. Thus, the combined action of the first axial fan 5 and the second axial fan 6 greatly increases the air intake through the air inlet 7 of the external air duct, increasing the volume and speed of fresh air delivery within the external air duct, so as to facilitate heat exchange with the evaporator 9 in the evaporation chamber 10. Of course, a single axial fan can also be installed in either the first air duct 3 or the second air duct 4; no specific limitation is made here.

[0036] Meanwhile, by placing the evaporator 9 inside the evaporation chamber 10, it facilitates stable installation of the evaporator 9 and allows the evaporation chamber 10 to accommodate a larger volume of fresh air, enabling better heat exchange between the evaporator 9 and the fresh air within the evaporation chamber 10. Figure 1 As shown, in this embodiment, the evaporation chamber 10 is further installed on the wall of the room.

[0037] Preferably, in another specific embodiment, a plurality of air outlets 8 are arranged around the edge of the window 13 to form a plurality of air outlet surfaces that are connected to the perimeter of the window 13. The plurality of air outlet surfaces are used to output airflow parallel to the plane in which the window 13 is located. The airflow forms an air wall on the inner side of the window 13, wherein the inner side of the window 13 refers to the side of the window 13 that is closer to the interior.

[0038] Specifically, such as Figure 1 As shown, the second air duct 4, located away from the first air duct 3, is arranged around the four sides of the window 13. Multiple air outlets 8 are divided into four groups, each positioned on a second air duct 4 corresponding to one of the four sides of the window 13. Therefore, when the air outlets 8 are positioned parallel to the plane of the window 13, since all four groups of air outlets 8 are directed towards the center of the window 13, a wind wall parallel to the window 13 is formed within the second room 2. When the window 13 is open, the airflow from the window 13 into the second room 2 directly acts on this wind wall, significantly improving the diffusion efficiency of the fresh air supplied from the air outlets 8 into the second room 2.

[0039] At the same time, the fresh air output from multiple air outlets 8 forms a wind wall on the inside of the window 13, which effectively prevents a large volume of high-speed fresh air from being directly delivered to the second room 2, thereby preventing direct blowing on the human body and causing discomfort, and thus enhancing the comfort experience of residents' home life.

[0040] Preferably, such as Figure 2As shown, in this embodiment, one of the opposite sides of the evaporator chamber 10 is provided with a fresh air inlet 101 and a fresh air outlet 102 arranged opposite to each other, and the other opposite side is provided with a refrigerant inlet 103 and a refrigerant outlet 104 arranged opposite to each other; the fresh air inlet 101 is connected to one end of the first air duct 3, and the fresh air outlet 102 is connected to one end of the second air duct 4. The refrigerant inlet 103 and the refrigerant outlet 104 can be connected to the outdoor unit 12 of the air conditioner through the refrigerant pipeline 11 to form a closed loop connection; the evaporator 9 includes a heat exchange tube bundle 91 and a fin assembly 92, which are inserted into one piece. One end of the heat exchange tube bundle 91 is connected to the refrigerant inlet 103, and the other end is connected to the refrigerant outlet 104.

[0041] Specifically, in Figure 2 In the structure shown, the fresh air inlet 101 is located on the right side of the evaporation chamber 10, and the fresh air outlet 102 is located on the left side of the evaporation chamber 10. The evaporation chamber 10 includes an air inlet chamber 105, a heat exchange chamber 106, and an air outlet chamber 107 arranged sequentially along the fresh air conveying direction. The evaporator 9 is installed in the heat exchange chamber 106. Along the fresh air conveying direction, the air inlet chamber 105 gradually expands, and the air outlet chamber 107 gradually contracts. Thus, 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. After heat exchange, the fresh air is conveyed to the second air duct 4 through the air outlet chamber 107 and the fresh air outlet 102.

[0042] Meanwhile, the refrigerant inlet 103 is located on the upper side of the evaporation chamber 10, and the refrigerant outlet 104 is located on the lower side of the evaporation chamber 10. Thus, when the outdoor unit 12 of the air conditioner operates in a closed-loop system formed by the refrigerant pipe 11 and the evaporator 9, the evaporator 9 can conduct heat transfer on the circulating refrigerant to achieve the purpose of heating or cooling the fresh air passing through its surface.

[0043] It should be noted that for the evaporator 9, each heat exchange tube in its heat exchange tube bundle 91 can be a copper tube with good thermal conductivity, and each fin 15 in the fin group 92 can be a copper fin, a steel fin, an aluminum fin, or a steel-aluminum composite fin, without specific limitations.

[0044] Preferably, in this embodiment, the evaporation chamber 10 is further provided with a first chamber 108 and a second chamber 109 arranged opposite to each other. An evaporator 9 is installed in the heat exchange chamber 106 corresponding to the first chamber 108 and the second chamber 109. The first chamber 108 is connected to one end of the heat exchange tube bundle 91 via the refrigerant inlet 103, and the second chamber 109 is connected to the other end of the heat exchange tube bundle 91 via the refrigerant outlet 104.

[0045] Specifically, such as Figure 2As shown, by setting the first chamber 108 and the second chamber 109, the two ends of the heat exchange tube bundle 91 can be integrated and fixedly installed, which greatly simplifies the installation structure of the heat exchange tube bundle 91. Furthermore, the first chamber 108 can uniformly deliver refrigerant from one end of the heat exchange tube bundle 91, and the second chamber 109 can uniformly recover the refrigerant after heat exchange from the other end of the heat exchange tube bundle 91, ensuring the uniformity of refrigerant delivery in each heat exchange tube.

[0046] Preferably, such as Figure 2 As shown, in order to ensure that the fresh air can exchange heat well with the fin assembly 92, the fin assembly 92 in this embodiment includes a plurality of fins 15. The plurality of fins are stacked at a fixed interval, which makes it easy for the fresh air to pass through the gap between any two adjacent fins 15 and to come into contact with the surface of each fin 15.

[0047] Furthermore, such as Figure 3 As shown, each fin 15 has multiple tube holes 151 and multiple protrusions 152, which are arranged in an array on the fin 15. Thus, when multiple fins 15 are stacked to form a fin assembly 92, multiple arrayed tube holes are also formed on the fin assembly 92, so that the fin assembly 92 and the heat exchange tube bundle 91 can be inserted into each other to form the evaporator 9 shown in this embodiment.

[0048] At the same time, such as Figure 3 As shown, since multiple protrusions 152 are provided on the surface of the fin 15, when the fresh air flows in the gap between two adjacent fins 15, the surface of each protrusion 152 forms a wall effect (Coanda effect) on the fresh air, which greatly facilitates the contact heat exchange between the fresh air and the surface of the fin 15.

[0049] Preferably, in this embodiment, the protrusion 152 is teardrop-shaped, with the larger end of the protrusion 152 facing the fresh air inlet 101 and the smaller end of the protrusion 152 facing the fresh air outlet 102; and / or, a plurality of protrusions 152 are arranged on the same side of the fin 15, with each protrusion 152 located between two adjacent pipe holes 151.

[0050] Specifically, because the large end of the teardrop-shaped protrusion 152 has a small curvature and the small end has a large curvature, when fresh air flows from the large end to the small end of the protrusion 152, it is easier for the air to adhere to the wall at the large end of the protrusion 152 and diverge at the small end. Furthermore, since multiple protrusions 152 are arranged on the same side of the fin 15, when fresh air flows through the gap between two adjacent fins 15, it flows forward along a serpentine curve. This greatly facilitates the contact between the fresh air and the surfaces of the two adjacent fins 15, thereby achieving better contact heat exchange.

[0051] In addition, by placing each protrusion 152 between two adjacent pipe holes 151, it is also convenient for fresh air to contact and exchange heat with each heat exchange pipe during forward delivery.

[0052] Preferably, this embodiment also provides an air-conditioned room, including the air conditioning system described in the above embodiment.

[0053] Specifically, such as Figure 1 As shown, the air-conditioned room includes a first room 1 and a second room 2 that are connected to each other; the air inlet 7 and the air outlet 8 are respectively located in the first room 1 and the second room 2, wherein... Figure 1 Specifically, the air inlet 7 is located in the first chamber 1, and the air outlet 8 is located in the second chamber 2. Of course, the air inlet 7 can also be located in the second chamber 2, and correspondingly, the air outlet 8 can also be located in the first chamber 1; there is no specific limitation on this.

[0054] Therefore, when the air conditioning system is started and running, the air in the first room 1 is continuously drawn in, and the drawn air is continuously input into the second room 2 after heat exchange in the evaporator 9. This results in a pressure difference between the two rooms, which accelerates the diffusion rate of the heat-exchanged gas between the different rooms in the room.

[0055] It should be noted that a space may be provided between the first room 1 and the second room 2, such as Figure 1 The switch door 14 shown can also be connected to the first room 1 and the second room 2 through multiple interconnected rooms inside the room, which is not specifically limited here.

[0056] The air-conditioned room provided in this embodiment has a simple structure and does not require a separate air conditioner for each room. This effectively avoids the space occupation of current air conditioner indoor units and significantly reduces the installation cost of air conditioners. It also enables the rapid flow of fresh air for cooling or heating in various indoor spaces, thereby improving the overall control effect of the indoor environment and meeting the comfort needs of residents.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air conditioning system, comprising an outdoor unit and an evaporator, wherein the outdoor unit and the evaporator are connected in a closed loop via refrigerant piping, characterized in that, It also includes an external air duct and a fan; the evaporator and the fan are installed in the external air duct, which is used to be installed outdoors; one end of the external air duct is provided with an air inlet and the other end is provided with an air outlet, wherein the air inlet is used to communicate with the first room inside the room, and the air outlet is used to communicate with the second room inside the room; The air outlet is formed around the window of the second room to assist the dispersion of fresh air output from the air outlet in the second room by utilizing the blowing effect of airflow perpendicular to the airflow through the window. As air is continuously drawn from the first room, fresh air that has been cooled or heated is continuously introduced into the second room, creating a pressure difference between the first and second rooms. This pressure difference can be used to accelerate the flow of fresh air between different rooms in the room. The external air duct includes a first air duct and a second air duct; one end of the first air duct and one end of the second air duct are connected through an evaporation chamber, and the evaporator is installed in the evaporation chamber; the fan is installed in the first air duct and / or the second air duct; the air inlet is provided at the other end of the first air duct, and the air outlet is provided at the other end of the second air duct. The evaporator chamber has a fresh air inlet and a fresh air outlet on one opposite side, and a refrigerant inlet and a refrigerant outlet on the other opposite side. The fresh air inlet is connected to the first air duct, and the fresh air outlet is connected to the second air duct. The refrigerant inlet and the refrigerant outlet are respectively connected to the air conditioner outdoor unit in a closed loop through the refrigerant pipeline. The evaporator includes a heat exchange tube bundle and a fin assembly. The heat exchange tube bundle and the fin assembly are inserted into each other. One end of the heat exchange tube bundle is connected to the refrigerant inlet, and the other end is connected to the refrigerant outlet. The fin assembly includes multiple fins, which are stacked at a fixed interval. The fins are provided with multiple tube holes and multiple protrusions arranged in an array. The protrusions are teardrop-shaped, with the larger end of the protrusion facing the fresh air inlet and the smaller end of the protrusion facing the fresh air outlet.

2. The air conditioning system according to claim 1, characterized in that, The air outlets are arranged around the edge of the window, forming multiple air outlet surfaces that are connected to the four sides of the window. These multiple air outlet surfaces are used to output airflow parallel to the plane of the window.

3. The air conditioning system according to claim 1, characterized in that, The fan includes an axial flow fan.

4. The air conditioning system according to claim 1, characterized in that, The evaporation chamber is further provided with a first chamber and a second chamber arranged opposite to each other; The first chamber connects the refrigerant inlet to one end of the heat exchange tube bundle, and the second chamber connects the refrigerant outlet to the other end of the heat exchange tube bundle.

5. The air conditioning system according to claim 1, characterized in that, Multiple protrusions are arranged on the same side of the fin, with each protrusion located between two adjacent tube holes.

6. An air-conditioned room, characterized in that, It also includes the air conditioning system as described in any one of claims 1 to 5.

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