CN217817093U

CN217817093U - Air conditioning unit and air conditioning system

Info

Publication number: CN217817093U
Application number: CN202221421118.8U
Authority: CN
Inventors: 石俊宝; 张健辉; 曹维兵; 游庆生
Original assignee: Shenzhen Iteaq Network Power Technology Co Ltd
Current assignee: Shenzhen Iteaq Network Power Technology Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-11-15
Anticipated expiration: 2032-06-07

Abstract

The utility model provides an air conditioning unit and air conditioning system, air conditioning unit include the cabinet body and refrigerating plant. The cabinet body has first installation cavity and second installation cavity, and first installation cavity sets up side by side along the horizontal direction with the second installation cavity. The cabinet body is equipped with first air intake and first air outlet, and first air intake is located the top of first air outlet, forms first wind channel between first air intake and the first air outlet, and first wind channel is located first installation cavity. The cabinet body still is equipped with second air intake and second air outlet, forms the second wind channel between second air intake and the second air outlet, and the second wind channel is located the second installation cavity. Refrigerating plant includes compressor, condenser, evaporimeter and refrigerant line, and compressor, condenser and evaporimeter pass through refrigerant tube coupling, and evaporimeter and compressor are located first installation cavity, and the evaporimeter sets up in first wind channel, and the condenser is located the second installation cavity, and the condenser sets up in the second wind channel. Therefore, the air conditioning unit is small in size, and the installation space is reduced.

Description

Air conditioning unit and air conditioning system

Technical Field

The utility model relates to an air conditioning technology field particularly, relates to an air conditioning unit and air conditioning system.

Background

At present, a large-sized air conditioning unit in the market is generally designed and installed by separating an air conditioning indoor unit and an air conditioning outdoor unit, and then the air conditioning indoor unit and the air conditioning outdoor unit are connected through a pipeline and a control line, so that the air conditioning unit needs a large installation space and is high in production cost.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an air conditioning unit is proposed to improve above-mentioned at least one problem.

The embodiment of the utility model realizes the above purpose through the following technical scheme.

In a first aspect, embodiments of the present invention provide an air conditioning unit. The air conditioning unit comprises a cabinet body and a refrigerating device. The cabinet body has first installation cavity and second installation cavity, and first installation cavity sets up side by side along the horizontal direction with the second installation cavity. The cabinet body is equipped with first air intake and first air outlet, and first air intake is located the top of first air outlet, forms first wind channel between first air intake and the first air outlet, and first wind channel is located first installation cavity. The cabinet body still is equipped with second air intake and second air outlet, forms the second wind channel between second air intake and the second air outlet, and the second wind channel is located the second installation cavity. Refrigerating plant includes compressor, condenser, evaporimeter and refrigerant line, and compressor, condenser and evaporimeter pass through refrigerant tube coupling, and evaporimeter and compressor are located first installation cavity, and the evaporimeter sets up in first wind channel, and the condenser is located the second installation cavity, and the condenser sets up in the second wind channel.

In some embodiments, the refrigeration device further includes an evaporation fan, the evaporation fan is installed in the first installation cavity, the evaporation fan is located below the evaporator, and the evaporation fan is disposed in the first air duct and faces the first air outlet.

In some embodiments, the first mounting cavity comprises a first sub-cavity, a second sub-cavity, and a third sub-cavity. First sub-chamber, second sub-chamber and third sub-chamber communicate in proper order to first sub-chamber is located the top of second sub-chamber and third sub-chamber, and the second is located between first sub-chamber and the third sub-chamber, first sub-chamber and first air intake intercommunication, third sub-chamber and first air outlet intercommunication. The evaporimeter is located first sub-chamber, and the compressor is located the second sub-chamber, and the evaporation fan is located the third sub-chamber.

In some embodiments, the evaporator comprises a first evaporation plate and a second evaporation plate. First evaporating plate and second evaporating plate are relative setting, and the interval between first evaporating plate and the second evaporating plate increases gradually from the direction of first sub chamber toward the second sub chamber.

In some embodiments, the second mounting cavity comprises a fourth sub-cavity and a fifth sub-cavity. The fourth sub-cavity is communicated with the second air outlet, the fifth sub-cavity is communicated with the second air inlet, and the arrangement direction of the fourth sub-cavity and the fifth sub-cavity is perpendicular to the arrangement direction of the first sub-cavity, the second sub-cavity and the third sub-cavity. The condenser is located the fourth sub-chamber, and radiator fan is located the fifth sub-chamber.

In some embodiments, the air conditioning unit further comprises an electric control box, wherein the electric control box is installed on the cabinet body and is located on one side, away from the first installation cavity, of the second installation cavity.

In some embodiments, the air conditioning unit further includes an air duct, and the air duct is communicated with the first air outlet.

In a second aspect, embodiments of the present invention further provide an air conditioning system. The air conditioning system comprises a first air conditioning unit and a second air conditioning unit, wherein the first air conditioning unit and the second air conditioning unit are the air conditioning units. The first installation cavity of the first air conditioning unit is opposite to the first installation cavity of the second air conditioning unit and is located between the second installation cavity of the first air conditioning unit and the second installation cavity of the second air conditioning unit.

In some embodiments, the cabinet of the first air conditioning unit and the cabinet of the second air conditioning unit are an integral frame cabinet.

The utility model discloses embodiment provides an air conditioning unit and air conditioning system, air conditioning unit includes the cabinet body and refrigerating plant, the cabinet body has first installation cavity and second installation cavity, first installation cavity sets up side by side along the horizontal direction with the second installation cavity, the cabinet body is equipped with first air intake and first air outlet, and first air intake is located the top of first air outlet, form first wind channel between first air intake and the first air outlet, first wind channel is located first installation cavity, the cabinet body still is equipped with second air intake and second air outlet, form the second wind channel between second air intake and the second air outlet, and the second wind channel is located the second installation cavity, refrigerating plant includes compressor, condenser, evaporimeter and refrigerant pipeline, compressor, condenser and evaporimeter pass through the refrigerant tube coupling, evaporimeter and compressor are located first installation cavity, the evaporimeter sets up in first wind channel, the condenser is located the second installation cavity, the condenser sets up in the second wind channel. So, a first wind channel rational arrangement in the first installation cavity of the cabinet body for indoor wind circulation, a second wind channel rational arrangement in the second installation cavity of the cabinet body for outdoor wind circulation, a second wind channel for indoor wind circulation and a second wind channel for outdoor wind circulation arrange in the cabinet body together, refrigerating plant also arranges in order in the first installation cavity and the second installation cavity of the cabinet body simultaneously, make air conditioning unit's structure compacter, let arrange more rationally, the installation space has been practiced thrift, can not disturbed between each part, can not influence air conditioning unit's wholeness ability yet, air conditioning unit's integrated level has been improved, reasonable layout, the inner space of the cabinet body has been rationally utilized, be favorable to reducing air conditioning unit's volume, the production cost is reduced.

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 shows a schematic diagram of a partial structure of an air conditioning system according to an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of an air conditioning unit according to an embodiment of the present invention.

Fig. 3 shows a schematic structural diagram of an air conditioning system according to an embodiment of the present invention.

Detailed Description

In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present invention, all other embodiments obtained by the person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

Referring to fig. 1, the present invention provides an air conditioning system 20, the air conditioning system 20 includes a first air conditioning unit 400 and a second air conditioning unit 500, in this embodiment, the first air conditioning unit 400 and the second air conditioning unit 500 may be the same air conditioning unit and are symmetrically disposed. In other embodiments, the first air conditioning unit 400 and the second air conditioning unit 500 may be different air conditioning units. The first air conditioning unit 400 and the second air conditioning unit 500 are the air conditioning units 10 described in the following embodiments, and since the present air conditioning system 20 adopts all technical solutions of all the following embodiments, at least all the beneficial effects brought by the technical solutions of the following embodiments are achieved, and no further description is given here.

Referring to fig. 1 to 3, the present invention further provides an air conditioning unit 10, wherein the air conditioning unit 10 can be applied to a machine room of a data center to cool a cabinet. In the following embodiments, the air conditioning unit 10 is mainly applied to a machine room of a data center for example, and other situations that require the air conditioning unit 10 may refer to implementation.

Air conditioning unit 10 includes the cabinet body 100 and refrigerating plant 200, each part in refrigerating plant 200 is installed in cabinet body 100 in order, make the air conditioner arrange compacter, it is more reasonable to arrange, can practice thrift installation space, each part in refrigerating plant 200 can not disturbed, do not influence air conditioning unit 10's wholeness ability, and, each part in refrigerating plant 200 sets up simultaneously in cabinet body 100, the integrated level of air conditioning unit 10 has been improved, the inner space of cabinet body 100 has rationally been utilized, be favorable to reducing air conditioning unit 10's volume.

The cabinet 100 has a plurality of profiles, for example, the general profile of the cabinet 100 is a square or a rectangular parallelepiped, which can be selected according to the actual situation, and is not limited herein.

The cabinet 100 has a rectangular parallelepiped frame structure, and includes a first side 101, a second side 102, a third side 103, and a fourth side 104 connected in sequence, where the first side 101 is opposite to the third side 103, and the second side 102 is opposite to the fourth side 104. The first side 101 is located, for example, at the top of the cabinet 100, the third side 103 is located, for example, at the bottom of the cabinet 100, and the second side 102 and the fourth side 104 are located between the first side 101 and the third side 103. In addition, the cabinet 100 further includes a fifth side 105 and a sixth side 106 of the cabinet 100, the fifth side 105 being opposite the sixth side 106. The fifth side 105 is, for example, a front or front portion of the cabinet 100, and the sixth side 106 is, for example, a rear or back portion of the cabinet 100. The fifth side 105 is connected to the first, second, third and

fourth sides

101, 102, 103 and 104, and the sixth side 106 is connected to the first, second, third and

fourth sides

101, 102, 103 and 104. The first side 101, the second side 102, the third side 103, the fourth side 104, the fifth side 105 and the sixth side 106 enclose an accommodating space of the cabinet 100. In this embodiment, the first side portion 101, the second side portion 102, the third side portion 103, the fourth side portion 104, the fifth side portion 105, and the sixth side portion 106 are an integral side plate-like structure. Of course, the cabinet 100 can be adjusted according to actual needs.

The cabinet 100 further includes a partition plate 107, and the partition plate 107 is disposed in the cabinet 100 between the first side 101 and the third side 103. Both sides of the partition plate 107 are respectively opposite to the second side portion 102 and the fourth side portion 104. The partition plate 107 divides the accommodating space of the cabinet 100 into a first mounting cavity 110 and a second mounting cavity 120, and the first mounting cavity 110 and the second mounting cavity 120 are arranged side by side in the horizontal direction and are not communicated with each other. A partition plate 107 may be connected to the first side 101, the third side 103, the fifth side 105, and the sixth side 106, and disposed opposite to the fourth side 104, so as to enclose a first mounting cavity 110. Correspondingly, the partition plate 107 may be connected to the first side 101, the third side 103, the fifth side 105 and the sixth side 106, and disposed opposite to the second side 102, so as to enclose the second mounting cavity 120. The first mounting cavity 110 and the second mounting cavity 120 are respectively located on opposite sides of the partition plate 107.

The cabinet body 100 is further provided with a first air inlet 111 and a first air outlet 112, the first air inlet 111 is located at the first air outlet 112, a first air duct 113 is formed between the first air inlet 111 and the first air outlet 112, the first air duct 113 is located in the first mounting cavity 110, the cabinet body 100 is further provided with a second air inlet 121 and a second air outlet 122, a second air duct 123 is formed between the second air inlet 121 and the second air outlet 122, and the second air duct 123 is located in the second mounting cavity 120. So, a first wind channel 113 for indoor wind circulation rationally arranged in first installation cavity 110 of cabinet body 100, a second wind channel 123 for outdoor wind circulation rationally arranged in second installation cavity 120 of cabinet body 100, a second wind channel 123 for indoor wind circulation rationally arranged in cabinet body 100, a first wind channel 113 for indoor wind circulation and a second wind channel 123 for outdoor wind circulation jointly arrange in cabinet body 100, thereby make first wind channel 113 and second wind channel 123 separate the setting, reduced the loss of the energy, improved air conditioning unit 10's work efficiency.

The refrigerating apparatus 200 includes an evaporator 211, a compressor 212, an evaporation fan 213, a condenser 221, a heat dissipation fan 222, and a refrigerant line (not shown). The evaporator 211, the compressor 212, and the condenser 221 are connected by refrigerant lines, so that cooling of the air conditioning unit 10 can be accomplished. In the present embodiment, in order to avoid corrosion of the refrigerant line, a copper pipe is generally used for the refrigerant line. The heat dissipation fan 222 is used to drive air to enter from the second air inlet and then flow into the second air duct 123 to exchange heat with the condenser 221, so as to reduce the temperature of the refrigerant in the condenser 221. The evaporator 211 is installed in the first installation chamber 110 and is located in the first air duct 113. The evaporation fan 213 is used to drive air to enter from the first air inlet 111, and then further drive the air to flow into the first air duct 113 to exchange heat with the evaporator 211, and finally convert the air into cold air to flow out from the first air outlet 112. In addition, as for the type of the evaporation fan 213, any one of a centrifugal fan, a cross-flow fan, and an axial-flow fan may be selected according to the arrangement of the first air inlet 111 and the first air outlet 112, and the size of the cabinet. Meanwhile, as for the type of the heat dissipation fan 222, any one of a centrifugal fan, a cross flow fan, an axial flow fan, and the like may be selected according to the arrangement of the second air inlet 121 and the second air outlet 122, and the size of the cabinet.

The following will be to evaporimeter 211, compressor 212 and evaporating fan 213 rational arrangement in first installation cavity 110, and condenser 221 and cooling fan 222 rational arrangement in second installation cavity 120 specifically explain, thereby make the air conditioner arrange compacter, it is more reasonable to arrange, can practice thrift the installation space, each part in refrigerating plant 200 can not disturbed, do not influence the wholeness ability of air conditioning unit 10, and, each part in refrigerating plant 200 sets up in cabinet body 100 simultaneously, the integrated level of air conditioning unit 10 has been improved, rational utilization the inner space of cabinet body 100, be favorable to reducing the volume of air conditioning unit 10.

The evaporation fan 213 is located the below of evaporimeter 211, and evaporation fan 213 sets up in first wind channel 113 and towards first air outlet 112 to be favorable to evaporation fan 213 to introduce outside air flow direction evaporimeter 211's windward side, increased the air quantity, shortened the distance of air motion, can in time discharge the cold air after the heat transfer from first air outlet 112, and then improved heat exchange efficiency.

Further, the first installation cavity 110 may include a first sub-cavity 114, a second sub-cavity 115 and a third sub-cavity 116, and in this embodiment, the first sub-cavity 114, the second sub-cavity 115 and the third sub-cavity 116 are arranged in a vertical direction, so that the structure of the air conditioning unit 10 is more compact. The first sub-chamber 114, the second sub-chamber 115 and the third sub-chamber 116 are sequentially communicated, the first sub-chamber 114 is located above the second sub-chamber 115 and the third sub-chamber 116, the second sub-chamber 115 is located between the first sub-chamber 114 and the third sub-chamber 116, the first sub-chamber 114 is communicated with the first air inlet 111, and the first air inlet 111 can be arranged at the first side 101 of the cabinet 100. The third sub-cavity 116 is communicated with the first air outlet 112, and the first air outlet 112 may be disposed at the third side 103 of the cabinet 100, for example; alternatively, the first air outlet 112 may be disposed, for example, below the fifth side 105 of the cabinet 100 near the third side 103; or, for example, the first air outlet 112 may be disposed below the sixth side 106 of the cabinet 100 near the third side 103, the evaporator 211 is located in the first sub-cavity 114, the compressor 212 is located in the second sub-cavity 115, and the evaporation fan 213 is located in the third sub-cavity 116. Thus, the compressor 212 is located between the evaporator 211 and the evaporation fan 213, which not only makes the structure of the air conditioning unit 10 more compact, but also makes the compressor 212 close to the evaporator 211, thereby shortening the length of the refrigerant pipeline, and further avoiding the refrigerant pipeline from being too long to cause too low pressure of the refrigerant. Of course, the bottom of the air conditioning unit 10 may be provided with a base (not shown) to allow air to smoothly flow out of the first air outlet 112, and to increase the distance from the bottom of the air conditioning unit 10 to the ground, so as to prevent moisture or humidity.

In this embodiment, since the first air inlet 111 is located above the first air outlet 112, in order to improve the heat exchange efficiency of the evaporator 211, the evaporator 211 includes a first evaporation plate 211a and a second evaporation plate 211b, the first evaporation plate 211a and the second evaporation plate 211b are disposed opposite to each other, and the distance between the first evaporation plate 211a and the second evaporation plate 211b gradually increases from the first sub-cavity to the second sub-cavity 115. Thus, the contact area of the evaporator 211 and the air is increased, and the heat exchange efficiency is improved. In other embodiments, the evaporator 211 is a plate-type evaporator, and the plate-type evaporator may be disposed in an upward inclined manner from the second side portion 102 to the connection line of the fourth side portion 104; or, the plate evaporator may be further disposed in an upward inclined manner from the fourth side portion 104 to the second side portion 102, so as to increase the contact area between the evaporator 211 and the air and improve the heat exchange efficiency.

Since the condenser 221 generates overheated air when operating, in this embodiment, the second air outlet 122 is located above the second air inlet 121, and the heat dissipation fan 222 is disposed in the second air channel 123 and faces the second air outlet 122, so as to facilitate air circulation and discharge the overheated air in time, shorten the air movement distance, and improve the heat exchange efficiency.

Further, the second mounting cavity 120 includes a fourth sub-cavity 124 and a fifth sub-cavity 125, the fourth sub-cavity 124 is communicated with the second air outlet 122, and the second air outlet 122 can be opened on the first side portion 101, the second side portion 102, the third side portion 103, the fourth side portion 104 and the sixth side portion 106, so that the heat dissipation fan 222 can easily dissipate heat of the condenser 221 and discharge overheated air from the second air outlet 122. The fifth sub-chamber 125 is communicated with the second air inlet 121. The second air outlet 122 may be opened on the fifth side portion 105, so as to facilitate easy air introduction of the heat dissipation fan 222. Condenser 221 is located in fourth subchamber 124 and heat dissipation fan 222 is located in fifth subchamber 125. In this embodiment, the fourth sub-cavity 124 is located above the fifth sub-cavity 125, and the arrangement direction of the fourth sub-cavity 124 and the fifth sub-cavity 125 is a connection line direction from the fifth side 105 to the sixth side 106, so that the shape of the fourth sub-cavity 124 is adapted to the shape of the condenser 221, the shape of the fifth sub-cavity 125 is adapted to the shape of the heat dissipation fan 222, and the volume of the air conditioning unit 10 is further reduced. The arrangement direction of the fourth sub-cavity 124 and the fifth sub-cavity 125 is perpendicular to the arrangement direction of the first sub-cavity 114, the second sub-cavity 115 and the third sub-cavity 116, so that each component of the refrigeration device 200 is more adaptive to the inner space of the cabinet 100, the structure of the air conditioning unit 10 is more compact, and the volume of the air conditioning unit 10 is reduced.

It is understood that the air conditioning unit 10 may further include an expansion valve (not shown), a throttle valve (not shown), and the like, and may be installed in the first installation cavity 110 and the second installation cavity 120 according to actual situations. And are not limited herein.

Air conditioning unit 10 further includes an electronic control box 300, where electronic control box 300 is installed in cabinet 100 and located on a side of second installation cavity 120 away from first installation cavity 110. Specifically, the electronically controlled box 300 is used for operation of the refrigeration device 200. The electric control box 300 generally generates more heat when working, and the air with lower temperature generally exists in the first mounting cavity 110, so that the electric control box 300 is arranged on one side of the second mounting cavity 120 departing from the first mounting cavity 110, which is beneficial to avoiding the heat transfer of the electric control box 300 in the first mounting cavity 110, and further avoiding influencing the temperature of the cold air in the first mounting cavity 110. In addition, the electronic control box 300 and the heat dissipation fan 222 are located in the second installation cavity 120 at the same time, which is beneficial for the heat dissipation fan 222 to guide air to the surface of the electronic control box 300, so that the electronic control box 300 is prevented from being over-heated.

In some embodiments, the air conditioning unit 10 further includes an air duct (not shown), and the air duct communicates with the first air outlet 112, so that the cool air generated by the first installation cavity 110 is guided to different areas of the machine room, the temperature of the machine room of the data center is more uniform, and the application range of the air conditioning unit 10 is increased.

Still referring to fig. 3, in some embodiments, the first installation cavity 110 of the first air conditioning unit 400 is opposite to the first installation cavity 110 of the second air conditioning unit 500, and is located between the second installation cavity 120 of the first air conditioning unit 400 and the second installation cavity 120 of the second air conditioning unit 500. In the present embodiment, in order to increase the cool air generated by the central air conditioning system 20, the first installation cavity 110 of the first air conditioning unit 400 and the installation cavity of the second air conditioning unit 500 are communicated. In other embodiments, the first installation cavity 110 of the first air conditioning unit 400 and the installation cavity of the second air conditioning unit 500 are not communicated, so as to facilitate the distribution of the cool air by the air duct.

In some embodiments, the cabinet 100 of the first air conditioning unit 400 is a unitary frame with the cabinet 100 of the second air conditioning unit 500. Specifically, the cabinet 100 of the first air conditioning unit 400 and the cabinet 100 of the second air conditioning unit 500 may be integrally formed, so that the installation process is saved; alternatively, the cabinet 100 of the first air conditioning unit 400 and the cabinet 100 of the second air conditioning unit 500 may be manufactured separately and then assembled together.

In the present invention, the terms "mounted," "connected," and the like are to be construed broadly unless otherwise explicitly defined or limited. For example, the connection can be fixed connection, detachable connection, integral connection or transmission connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like are used merely for distinguishing between descriptions and not intended to imply or imply a particular structure. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, a schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described in this disclosure may be combined and combined by those skilled in the art without being mutually inconsistent.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. An air conditioning assembly, comprising:

the air conditioner comprises a cabinet body, wherein the cabinet body is provided with a first installation cavity and a second installation cavity, the first installation cavity and the second installation cavity are arranged side by side along the horizontal direction, the cabinet body is provided with a first air inlet and a first air outlet, the first air inlet is positioned above the first air outlet, a first air channel is formed between the first air inlet and the first air outlet, the first air channel is positioned in the first installation cavity, the cabinet body is also provided with a second air inlet and a second air outlet, a second air channel is formed between the second air inlet and the second air outlet, and the second air channel is positioned in the second installation cavity;

refrigerating plant, refrigerating plant includes compressor, condenser, evaporimeter and refrigerant pipeline, the compressor the condenser with the evaporimeter passes through refrigerant tube coupling, the evaporimeter with the compressor is located first installation cavity, the evaporimeter set up in first wind channel, the condenser is located the second installation cavity, the condenser set up in the second wind channel.

2. The air conditioning unit as set forth in claim 1, wherein said refrigeration unit further includes an evaporation fan mounted to said first mounting cavity, said evaporation fan being located below said evaporator, said evaporation fan being disposed in said first air duct and facing said first air outlet.

3. The air conditioning unit as set forth in claim 2, wherein said first mounting cavity includes a first sub-cavity, a second sub-cavity and a third sub-cavity, said first sub-cavity, said second sub-cavity and said third sub-cavity being in sequential communication, and said first sub-cavity being located above said second sub-cavity and said third sub-cavity, said second sub-cavity being located between said first sub-cavity and said third sub-cavity, said first sub-cavity being in communication with said first air inlet, said third sub-cavity being in communication with said first air outlet, said evaporator being located in said first sub-cavity, said compressor being located in said second sub-cavity, said evaporation fan being located in said third sub-cavity.

4. The air conditioning assembly according to claim 3, wherein the evaporator includes a first evaporation plate and a second evaporation plate, the first evaporation plate and the second evaporation plate are disposed opposite to each other, and a distance between the first evaporation plate and the second evaporation plate gradually increases from the first sub-cavity to the second sub-cavity.

5. The air conditioning unit as set forth in claim 3, wherein said refrigeration unit further includes a heat dissipation fan mounted to said second mounting cavity, said heat dissipation fan being disposed in said second air duct and facing said second air outlet.

6. The air conditioning unit according to claim 5, wherein the second mounting cavity includes a fourth sub-cavity and a fifth sub-cavity, the fourth sub-cavity is communicated with the second air outlet, the fifth sub-cavity is communicated with the second air inlet, the arrangement direction of the fourth sub-cavity and the fifth sub-cavity is perpendicular to the arrangement direction of the first sub-cavity, the second sub-cavity and the third sub-cavity, the condenser is located in the fourth sub-cavity, and the heat dissipation fan is located in the fifth sub-cavity.

7. The air conditioning unit as claimed in claim 6, further comprising an electrical control box mounted to the cabinet and located on a side of the second mounting cavity facing away from the first mounting cavity.

8. The air conditioning unit as set forth in any one of claims 1-7, further comprising an air duct, wherein said air duct is in communication with said first air outlet.

9. An air conditioning system, comprising:

a first air conditioning unit; and

a second air conditioning unit;

the first air conditioning unit and the second air conditioning unit are air conditioning units as set forth in claim 1;

the first installation cavity of the first air conditioning unit is opposite to the first installation cavity of the second air conditioning unit, and is located between the second installation cavity of the first air conditioning unit and the second installation cavity of the second air conditioning unit.

10. The air conditioning system of claim 9, wherein the cabinet of the first air conditioning unit and the cabinet of the second air conditioning unit are an integrated frame cabinet.