Air conditioning system and cooling method

Abstract

The invention provides an air conditioning system and a cooling method. The air conditioning system comprises a cabinet, the cabinet is arranged outdoors and comprises a first cabinet body and a second cabinet body, and the first cabinet body communicates with the second cabinet body; the ventilation opening comprises an air supply opening and an air return opening, the air supply opening communicates the indoor space with the first cabinet, the air return opening is formed in the second cabinet and communicates the indoor space with the second cabinet, and the air supply opening and the air return opening are formed in the same side of the cabinets; the draught fans comprise the first draught fan, and the first draught fan is arranged corresponding to the air supply outlet and supplies air towards the air supply outlet. The refrigerating system comprises a compressor, an evaporator and a condenser, the evaporator and the compressor are arranged in the first cabinet, the condenser is arranged outside the first cabinet, and the evaporator is located between the air supply opening and the air return opening. According to the air-conditioning system, the indoor unit does not need to be arranged inside the data center, the air-conditioning system is prevented from occupying the space of a machine room, the space utilization rate of the machine room is improved, and the installation difficulty and installation cost of the air-conditioning system are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning and refrigeration, and in particular to an air conditioning system and a cooling method. Background Art

[0002] Servers and other equipment in data centers generate a lot of heat when running. If the heat is not dissipated in time, it will seriously affect the performance and life of the equipment, and even cause failures. Therefore, it is necessary to install an air conditioning system in the data center. The air conditioning system accurately controls the indoor temperature and humidity to maintain a suitable and stable environment in the data center, which helps the server maintain the best working state, thereby reducing the risk of performance degradation and hardware damage caused by overheating. In addition, the air conditioning system can filter impurities in the air, keep the computer room clean, and prevent dust from damaging the equipment.

[0003] At present, a split air-cooled air-conditioning system is usually used to control the temperature in a data center. The split air-cooled air-conditioning system is divided into an indoor unit and an outdoor unit. The indoor unit needs to be installed inside the data center. On the one hand, the space in the data center is limited. Installing the indoor unit inside the data center occupies precious computer room space and reduces the space utilization rate in the data center. On the other hand, installing the indoor unit in the data center requires installing matching refrigerant pipelines and circuits for the indoor unit to achieve the connection between the indoor unit and the outdoor unit, which increases the difficulty and cost of installation, thereby leading to the problem of increased operating costs of the data center. Summary of the invention

[0004] The main purpose of the present invention is to provide an air-conditioning system and a cooling method. The air-conditioning system does not need to set an indoor unit inside a data center, thereby avoiding the air-conditioning system occupying computer room space, improving the space utilization rate of the computer room, and reducing the installation difficulty and installation cost of the air-conditioning system, thereby achieving the effect of reducing the operating cost of the data center.

[0005] In order to achieve the above object, according to one aspect of the present invention, an air conditioning system is provided, comprising a cabinet, the cabinet is arranged outdoors, the cabinet comprises a first cabinet and a second cabinet, the first cabinet is communicated with the second cabinet;

[0006] The vents include a supply vent and a return vent, the supply vent connects the room with the first cabinet, the return vent is arranged on the second cabinet to connect the room with the second cabinet, and the supply vent and the return vent are arranged on the same side of the cabinet;

[0007] The fan includes a first fan, which is arranged corresponding to the air supply port and supplies air toward the air supply port;

[0008] The refrigeration system comprises a compressor, an evaporator and a condenser. The evaporator and the compressor are arranged in a first cabinet, the condenser is arranged outside the first cabinet, and the evaporator is located between an air supply port and an air return port.

[0009] Further, the air-conditioning system also includes a partition, the partition includes a first partition, the vent also includes a first vent and a second vent, the first vent is arranged on the first cabinet and connects the outdoors with the first cabinet, the first partition separates the first cabinet and the second cabinet, the second vent is arranged on the first partition and connects the first cabinet and the second cabinet, the air-conditioning system also includes a ventilation valve, the ventilation valve includes a first ventilation valve, the first ventilation valve is arranged at the second vent, the evaporator divides the first cabinet into a first chamber and a second chamber, the first vent connects the outdoors with the first chamber, the air supply port connects the indoor room with the second chamber, and the second vent connects the first chamber with the second cabinet; and / or, the ventilation valve also includes a third ventilation valve, the third ventilation valve is arranged on the first vent.

[0010] Furthermore, the vents also include a third vent and a fourth vent, the partition also includes a second partition, the ventilation valve also includes a second ventilation valve, the fan also includes a second fan, the second partition divides the second cabinet into a third chamber and a fourth chamber, the return air port connects the indoor chamber with the third chamber, the second vent is arranged on the first partition and connects the third chamber with the first chamber, the third vent is arranged on the second partition and connects the third chamber with the fourth chamber, the second ventilation valve is arranged on the third vent, the fourth vent is arranged on the fourth chamber and connects the fourth chamber with the outdoors, the second fan is arranged on the fourth vent, and the second fan supplies air to the outdoors.

[0011] Furthermore, the cabinet also includes a third cabinet, the partition also includes a third partition and a fourth partition, the vent also includes a fifth vent, the third partition separates the first cabinet and the third cabinet, the fourth partition is arranged in the third cabinet, and the third cabinet is divided into a fifth chamber and a sixth chamber, the fifth vent is arranged on the third partition and connects the second chamber and the sixth chamber, the air supply port is arranged on the third cabinet and connects the sixth chamber with the indoor room, and the first fan is arranged at the fifth vent and supplies air to the indoor room.

[0012] Furthermore, the condenser includes a first condenser, which is arranged in the fourth chamber, and a sixth vent is opened on the side wall of the fourth chamber, and the sixth vent connects the fourth chamber with the outdoors.

[0013] Further, the condenser includes a second condenser, which is arranged in the fifth chamber, and a seventh vent is opened on the side wall of the fifth chamber; and / or the vent also includes an eighth vent, and the fan also includes a third fan, the eighth vent is arranged on the fifth chamber, the eighth vent connects the fifth chamber with the outdoors, and the third fan is arranged on the eighth vent to supply air to the outdoors.

[0014] Further, the air conditioning system further comprises a filter, the filter comprises a first filter, the first filter is arranged on the first vent; and / or the filter comprises a second filter, the second filter is arranged on a side of the evaporator facing the first chamber.

[0015] Furthermore, the air conditioning system also includes a sensor, and the sensor includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged outdoors, and the second temperature sensor is arranged at the return air outlet.

[0016] Further, the compressor is arranged in the first chamber.

[0017] Furthermore, the cabinet also includes a third cabinet, and the first cabinet, the second cabinet and the third cabinet have the same length along the indoor air supply direction.

[0018] Furthermore, the cabinet also includes a third cabinet, and the first cabinet, the second cabinet and the third cabinet are horizontally arranged as a horizontal cabinet; or, the first cabinet, the second cabinet and the third cabinet are vertically arranged as a vertical cabinet.

[0019] Furthermore, a plurality of horizontal cabinets are installed in a stacked manner, or a plurality of vertical cabinets are installed in a side-by-side manner.

[0020] Further, the second partition includes a parallel section and a guide section, the two parallel sections are respectively arranged at both ends of the guide section, one end of the parallel section away from the guide section extends along the width direction of the second cabinet to the side wall of the second cabinet and is connected to the side wall, the two parallel sections are parallel to each other, and the guide section is an inclined surface; and / or, the fourth partition includes a parallel section and a guide section, the two parallel sections are respectively arranged at both ends of the guide section, one end of the parallel section away from the guide section extends along the width direction of the third cabinet to the side wall of the third cabinet and is connected to the side wall, the two parallel sections are parallel to each other, and the guide section is an inclined surface.

[0021] Furthermore, a cooling method using the air conditioning system is provided, comprising:

[0022] Get outdoor temperature data and indoor temperature data;

[0023] Control the air conditioning system to enter different cooling modes according to outdoor temperature data and indoor temperature data;

[0024] The cooling modes include: air conditioner cooling mode, mixed cooling mode and natural cooling mode.

[0025] Further, the steps of controlling the air conditioning system to enter different cooling modes according to the outdoor temperature data and the indoor temperature data include:

[0026] Compare the outdoor temperature data with the indoor temperature data to determine whether to control the air conditioning system to enter the air conditioning cooling mode;

[0027] If the outdoor temperature data is greater than or equal to the indoor temperature data, the air conditioning system is controlled to enter the air conditioning cooling mode;

[0028] If the outdoor temperature data is lower than the indoor temperature data, the difference between the outdoor and indoor temperature data is calculated based on the outdoor temperature data and the indoor temperature data, and the temperature data difference is compared with the mixed cooling temperature difference threshold and the natural cooling temperature difference threshold, and the cooling mode of the air conditioning system is selected according to the comparison result;

[0029] If the temperature data difference is greater than or equal to the mixed cooling temperature difference threshold and less than or equal to the natural cooling temperature difference threshold, the air conditioning system is controlled to enter the mixed cooling mode;

[0030] If the temperature data difference is less than the mixed cooling temperature difference threshold, the air conditioning system is controlled to enter the air conditioning cooling mode;

[0031] If the temperature data difference is greater than the natural cooling temperature difference threshold, the air conditioning system is controlled to enter the natural cooling mode.

[0032] Furthermore, the step of controlling the air conditioning system to enter the air conditioning cooling mode includes:

[0033] Control the second ventilation valve and the third ventilation valve to close, and control the first ventilation valve to open;

[0034] Controlling the first fan, the second fan and the third fan to be in operation state;

[0035] Control the compressor to be in running state.

[0036] Furthermore, the step of controlling the air conditioning system to enter the hybrid cooling mode includes:

[0037] Control the first ventilation valve to close, and control the second ventilation valve and the third ventilation valve to open;

[0038] Controlling the first fan, the second fan and the third fan to be in operation state;

[0039] Control the compressor to be in running state.

[0040] Furthermore, the step of controlling the air conditioning system to enter the natural cooling mode includes:

[0041] Control the first ventilation valve to close, and control the second ventilation valve and the third ventilation valve to open;

[0042] Control the first fan and the second fan to be in a running state, and control the third fan to be in a stopped state;

[0043] Control the compressor to be in the stopped state.

[0044] By applying the technical solution of the present invention, the cabinet is used to fix and protect the components arranged in the cabinet. The refrigeration system is mainly used to realize the function of the refrigeration cycle of the air-conditioning system. The refrigeration system includes a compressor, an evaporator and a condenser, wherein the evaporator is mainly used to absorb the heat of the air in the first cabinet. When the return air flows through the evaporator, the internal refrigerant will evaporate from liquid to gas. This process requires the absorption of a large amount of heat, thereby cooling the air in the first cabinet. The compressor is used to drive the flow of the refrigerant, and at the same time compresses the low-temperature and low-pressure gaseous refrigerant from the evaporator into a high-temperature and high-pressure gas, so that the refrigerant can effectively release heat in the condenser. The condenser is used to cool the high-temperature and high-pressure gaseous refrigerant compressed by the compressor and convert it into liquid. In this process, the heat released by the refrigerant is discharged. To the outdoor environment and recooled to liquid, and then the refrigerant is sent to the evaporator again to evaporate and absorb heat, thereby completing a refrigeration cycle; the first fan is used to drive the air flow, and the first fan is set corresponding to the air supply port to supply air to the air supply port, and the air supply port is connected with the first cabinet and the room, and the air in the first cabinet that has been cooled by the refrigeration system is blown into the room through the first fan, thereby reducing the indoor temperature; the return air port is set on the second cabinet to connect the room and the second cabinet, ensuring that the hot air in the room can flow back into the cabinet under the action of the gas pressure difference between the room and the cabinet; the air supply port and the return air port are set on the same side of the cabinet, so that the cabinet is connected with the room, thereby ensuring that the air can circulate between the room and the cabinet. The air cooled by the refrigeration system is blown into the room through the air supply port under the action of the fan to cool the room. The hot air in the room away from the air supply port flows back to the cabinet through the return air port under the action of air pressure, is cooled again and blown into the room again, so as to realize the circulation of the cooling air. By setting the evaporator on the air circulation path between the air supply port and the return air port in the cabinet, the air is in contact with the evaporator as much as possible during the circulation process, so as to improve the cooling effect of the evaporator on the air. The air conditioning system provided by the present invention can cool the room by setting the refrigeration system in the outdoor cabinet, without setting the indoor unit in the data center, avoiding the air conditioning system occupying the computer room space, improving the utilization rate of the computer room space, reducing the installation difficulty and installation cost of the air conditioning system, and thus achieving the effect of reducing the operating cost of the data center. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0046] Figure 1The overall structure diagram of the air conditioning system according to the embodiment of the present invention is shown;

[0047] Figure 2 Another overall structural diagram of an air conditioning system according to an embodiment of the present invention is shown;

[0048] Figure 3 A schematic diagram showing the installation of an air conditioning system according to an embodiment of the present invention is shown;

[0049] Figure 4 Another installation schematic diagram of an air conditioning system according to an embodiment of the present invention is shown;

[0050] Figure 5 A schematic diagram of an air path in a cooling mode of an air conditioner of an air conditioning system and a cooling method according to an embodiment of the present invention is shown;

[0051] Figure 6 A schematic diagram of a mixed cooling mode wind path of an air conditioning system and a cooling method according to an embodiment of the present invention is shown;

[0052] Figure 7 A schematic diagram of a natural cooling mode wind path of an air conditioning system and a cooling method according to an embodiment of the present invention is shown;

[0053] Figure 8 A schematic diagram showing a stacked installation of an air conditioning system and a cooling method according to an embodiment of the present invention; and

[0054] Fig. 9 A method flow chart showing an air conditioning system and a cooling method according to an embodiment of the present invention is shown.

[0055] The above drawings include the following reference numerals:

[0056] 1. Cabinet; 11. First cabinet; 12. Second cabinet; 13. Third cabinet; 21. First vent; 22. Second vent; 23. Third vent; 24. Fourth vent; 25. Fifth vent; 26. Sixth vent; 27. Air supply; 28. Air return; 29. ​​Seventh vent; 30. Eighth vent; 31. Evaporator; 32. Compressor; 33. Condenser; 331. First condenser; 332. Second condenser; 4. Partition; 41. First partition Partition; 42, second partition; 43, third partition; 44, fourth partition; 5, chamber; 51, first chamber; 52, second chamber; 53, third chamber; 54, fourth chamber; 55, fifth chamber; 56, sixth chamber; 6, fan; 61, first fan; 62, second fan; 63, third fan; 7, ventilation valve; 71, first ventilation valve; 72, second ventilation valve; 73, third ventilation valve; 8, wire hole; 91, first filter; 92, second filter. DETAILED DESCRIPTION

[0057] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0058] See also Figures 1 to 9 As shown, the present invention provides an air-conditioning system, including a cabinet 1, which is arranged outdoors, and the cabinet 1 includes a first cabinet 11 and a second cabinet 12, and the first cabinet 11 is communicated with the second cabinet 12; a vent, the vent includes an air supply vent 27 and an air return vent 28, the air supply vent 27 connects the indoor room with the first cabinet 11, and the return vent 28 is arranged on the second cabinet 12 to connect the indoor room with the second cabinet 12, and the air supply vent 27 and the return vent 28 are arranged on the same side of the cabinet 1; a fan 6, the fan 6 includes a first fan 61, the first fan 61 is arranged corresponding to the air supply vent 27, and supplies air toward the air supply vent 27; a refrigeration system, the refrigeration system includes a compressor 32, an evaporator 31 and a condenser 33, the evaporator 31 and the compressor 32 are arranged in the first cabinet 11, the condenser 33 is arranged outside the first cabinet 11, and the evaporator 31 is located between the air supply vent 27 and the return vent 28.

[0059] In the above technical solution, the cabinet 1 is used to fix and protect the components arranged in the cabinet 1 .

[0060] The refrigeration system is mainly used to realize the function of the refrigeration cycle of the air-conditioning system. The refrigeration system includes a compressor 32, an evaporator 31 and a condenser 33. The evaporator 31 is mainly used to absorb the heat of the air in the first cabinet 11. When the return air flows through the evaporator 31, the refrigerant inside the evaporator 31 will evaporate from liquid to gas. This process requires absorbing a large amount of heat, thereby cooling the air in the first cabinet 11. The compressor 32 is used to drive the flow of the refrigerant, and at the same time compresses the low-temperature and low-pressure gaseous refrigerant from the evaporator 31 into a high-temperature and high-pressure gas, so that the refrigerant can effectively release heat in the condenser 33. The condenser 33 is used to cool the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 32 and convert it into a liquid state. In this process, the heat released by the refrigerant is discharged to the outdoor environment and recooled to a liquid state, and then the refrigerant is sent to the evaporator 31 again to evaporate and absorb heat, thereby completing a refrigeration cycle. The first fan 61 is used to drive air flow. The first fan 61 is set corresponding to the air supply port 27 to supply air to the air supply port 27. The air supply port 27 connects the first cabinet 11 with the room. The air in the first cabinet 11 cooled by the refrigeration system is blown into the room through the first fan 61, thereby reducing the indoor temperature. The return air port 28 is set on the second cabinet 12 to connect the room with the second cabinet 12, ensuring that the hot air in the room can flow back into the cabinet 1 under the action of the gas pressure difference between the room and the cabinet 1. The refrigeration system is set in the outdoor cabinet 1, and one side of the cabinet 1 is in contact with the outer wall of the data center. The air supply port 27 and the return air port 28 are both set on the side of the cabinet 1 close to the outer wall of the data center, so that the cabinet 1 is connected with the indoor of the data center, thereby ensuring that the air can circulate between the room and the cabinet 1 to facilitate the externalization of the refrigeration system.

[0061] The air cooled by the refrigeration system is blown into the room through the air supply port 27 under the action of the fan to cool the room. The hot air in the room away from the air supply port 27 flows back to the cabinet 1 through the return air port 28 under the action of air pressure, is cooled again and blown into the room again, thereby realizing the circulation of the cooled air. By arranging the evaporator 31 on the air circulation path between the air supply port 27 and the return air port 28 in the cabinet 1, the air is in contact with the evaporator 31 as much as possible during the circulation process, thereby improving the cooling effect of the evaporator 31 on the air.

[0062] The air-conditioning system of the embodiment of the present application can cool down the indoor environment by setting the refrigeration system in the outdoor cabinet 1. There is no need to set up an indoor unit in the data center, which avoids the air-conditioning system occupying the computer room space, improves the utilization rate of the computer room space, and reduces the installation difficulty and installation cost of the air-conditioning system, thereby achieving the effect of reducing the operating cost of the data center.

[0063] In one embodiment of the present invention, the air-conditioning system further includes a partition 4, the partition 4 includes a first partition 41, the vent further includes a first vent 21 and a second vent 22, the first vent 21 is arranged on the first cabinet 11 and connects the outdoors with the first cabinet 11, the first partition 41 separates the first cabinet 11 and the second cabinet 12, the second vent 22 is arranged on the first partition 41 and connects the first cabinet 11 and the second cabinet 12, the air-conditioning system further includes a ventilation valve 7, the ventilation valve 7 includes a first ventilation valve 71, the first ventilation valve 71 is arranged at the second vent 22, the evaporator 31 divides the first cabinet 11 into a first chamber 51 and a second chamber 52, the first vent 21 connects the outdoors with the first chamber 51, the air supply port 27 connects the indoor room with the second chamber 52, and the second vent 22 connects the second chamber 52 with the second cabinet 12.

[0064] In the above technical scheme, the first partition 41 plays a role of physical isolation for the first cabinet 11 and the second cabinet 12. The first partition 41 cooperates with the second vent 22 and the first ventilation valve 71 arranged on the first partition 41 to control the supply and return air paths. In the cooling mode of the air conditioner, the indoor return air enters from the return air port 28, and after being guided by the first partition 41 and the second vent 22, the indoor return air flows to the evaporator 31 for cooling; in the mixed cooling mode and the natural cooling mode, the outdoor fresh air enters from the first vent 21, the first partition 41 and the closed first ventilation valve 71 separate the first cabinet 11 and the second cabinet 12, limit the flow path of the outdoor fresh air, and make the outdoor fresh air pass through the first filter 91 and the evaporator 31, so as to prevent the outdoor air from flowing to the return air port 28 and interfering with the flow path of the return hot air. At the same time, after the first partition 41 separates the first cabinet 11 and the second cabinet 12, the heat exchange area of ​​the cabinet where the evaporator 31 is located is reduced, thereby further improving the cooling effect and reducing the cooling energy consumption.

[0065] The first vent 21 is used to introduce outdoor air. When the outdoor temperature is suitable for the air conditioning system to enter the natural cooling mode or the mixed cooling mode, the outdoor low-temperature air can directly enter the first cabinet 11 through the first vent 21 and then be sent into the room for cooling by the fan.

[0066] The second vent 22 is disposed on the first partition 41 to connect the first cabinet 11 with the second cabinet 12 , thereby increasing the cooling channel space so that the air returning to the second cabinet 12 can return to the evaporator 31 of the first cabinet 11 through the second vent 22 for cooling.

[0067] The first ventilation valve 71 is used to control the opening and closing of the second ventilation port 22, thereby adjusting the air circulation path. When the indoor temperature is cooled by the natural cooling mode or the mixed cooling mode, the first ventilation valve 71 is closed to separate the first cabinet 11 and the second cabinet 12, preventing hot air from entering the first cabinet 11 from the second cabinet 12 through the second ventilation port 22, thereby reducing the effect of natural cooling. When the air conditioner cooling mode is adopted, the first ventilation valve 71 is opened to allow the air flow to flow through the evaporator 31 in the first cabinet 11 and then flow into the room, thereby improving the cooling effect of the evaporator 31 on the circulating air flow.

[0068] The evaporator 31 divides the first cabinet 11 into a first chamber 51 and a second chamber 52, so that the airflow must pass through the first chamber 51 and the evaporator 31 to reach the second chamber 52, thereby improving the cooling effect of the evaporator 31 on the circulating airflow in the air conditioner cooling mode and mixed cooling mode.

[0069] In one embodiment of the present invention, the ventilation valve 7 further includes a third ventilation valve 73 , and the third ventilation valve 73 is disposed on the first ventilation port 21 .

[0070] In the above technical solution, the third ventilation valve 73 is used to control the opening and closing of the first ventilation port 21, so as to adjust the air circulation path. When the air-conditioning system enters the air-conditioning cooling mode, the third ventilation valve 73 is closed to prevent the air with higher outdoor temperature from entering the first cabinet 11 and adding extra burden to the refrigeration system. When the air-conditioning enters the mixed cooling mode or the natural cooling mode, the third ventilation valve 73 is opened to allow the air with lower outdoor temperature to enter the first cabinet 11 through the first ventilation port 21 and participate in the cold air circulation, thereby reducing the refrigeration energy consumption of the air-conditioning system.

[0071] In one embodiment of the present invention, the ventilation openings also include a third ventilation opening 23 and a fourth ventilation opening 24, the partition 4 also includes a second partition 42, the ventilation valve 7 also includes a second ventilation valve 72, the fan 6 also includes a second fan 62, the second partition 42 divides the second cabinet 12 into a third chamber 53 and a fourth chamber 54, the return air port 28 connects the indoor room with the third chamber 53, the second ventilation opening 22 is arranged on the first partition 41 and connects the third chamber 53 with the first chamber 51, the third ventilation opening 23 is arranged on the second partition 42 and connects the third chamber 53 with the fourth chamber 54, the second ventilation valve 72 is arranged on the third ventilation opening 23, the fourth ventilation opening 24 is arranged on the fourth chamber 54 and connects the fourth chamber 54 with the outdoors, the second fan 62 is arranged on the fourth ventilation opening 24, and the second fan 62 supplies air to the outdoors.

[0072] In the above technical solution, the second partition 42 divides the second cabinet 12 into a third chamber 53 and a fourth chamber 54. The second vent 22 arranged on the second partition 42 is used to connect the third chamber 53 and the fourth chamber 54. The second ventilation valve 72 is arranged on the third vent 23 to control the opening and closing of the third vent 23, thereby adjusting the air path. The fourth vent 24 is used to connect the fourth chamber 54 with the outdoors to achieve air circulation between the fourth chamber 54 and the outdoors, which is helpful for heat dissipation. The second fan 62 is arranged on the fourth vent 24 to supply air to the outdoors, which further accelerates the efficiency of air exchange between the fourth chamber 54 and the outdoors and improves the heat dissipation effect. When the air conditioning system adopts the air conditioner cooling mode, the second ventilation valve 72 is closed, so that the hot air returning to the second cabinet 12 enters the first chamber 51 from the third chamber 53 through the second ventilation port 22 for cooling. At the same time, the second fan 62 works, so that the outside air passes through the first condenser 331 from the sixth ventilation port 26 to enter the fourth chamber 54, and then is discharged to the outside through the fourth ventilation port 24, thereby improving the heat dissipation effect of the first condenser 331. When the air conditioning system adopts the mixed cooling mode and the natural cooling mode, the first ventilation valve 71 is closed and the second ventilation valve 72 is opened, so that the hot air returning to the second cabinet 12 enters the fourth chamber 54 from the third chamber 53 through the second ventilation port 22. At the same time, the second fan 62 works to discharge the hot air in the fourth chamber 54 to the outside.

[0073] In one embodiment of the present invention, the cabinet 1 also includes a third cabinet 13, the partition 4 also includes a third partition 43 and a fourth partition 44, the vent also includes a fifth vent 25, the third partition 43 separates the first cabinet 11 and the third cabinet 13, the fourth partition 44 is arranged in the third cabinet 13, and the third cabinet 13 is divided into a fifth chamber 55 and a sixth chamber 56, the fifth vent 25 is arranged on the third partition 43 and connects the second chamber 52 and the sixth chamber 56, the air supply port 27 is arranged on the third cabinet 13 and connects the sixth chamber 56 with the room, and the first fan 61 is arranged at the fifth vent 25 and supplies air to the room.

[0074] In the above technical solution, the third partition 43 is used to separate the first cabinet 11 and the third cabinet 13, so as to prevent the cold air in the first cabinet 11 and the hot air in the sixth chamber 56 in the third cabinet 13 from mixing and affecting the cooling effect of the air conditioning system. At the same time, the third partition 43 cooperates with the fifth vent 25 and the air supply port 27 to limit the flow path of the cooling air flow, and provide a circulation channel for the cooling air flow, so that the cold air cooled by the evaporator 31 can enter the fifth chamber 55 through the fifth vent 25, and then enter the room through the air supply port 27; The four partitions 44 are inside the third cabinet 13, and separate the fifth chamber 55 and the sixth chamber 56 to prevent the cold air from mixing with the outside air involved in heat dissipation, limit the airflow flow area, and achieve orderly guidance of the airflow; the fifth vent 25 is set on the third partition 43 and connects the second chamber 52 and the sixth chamber 56, so that the cold air cooled by the evaporator 31 can enter the sixth chamber 56 from the second chamber 52 through the fifth vent 25; the first fan 61 is used to blow the cold air entering the sixth chamber 56 into the room through the air supply port 27, thereby improving the air supply efficiency.

[0075] In one embodiment of the present invention, the condenser 33 includes a first condenser 331, which is disposed in the fourth chamber 54. A sixth vent 26 is formed on the side wall of the fourth chamber 54, and the sixth vent 26 connects the fourth chamber 54 with the outdoors.

[0076] In the above technical solution, the first condenser 331 is mainly used for heat dissipation, so that the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 32 is cooled and converted into liquid. The sixth vent 26 connects the fourth chamber 54 with the outdoors, so that the outdoor air passes through the first condenser 331 from the sixth vent 26 into the fourth chamber 54, and then is discharged to the outdoors from the fourth vent 24, realizing air convection, thereby improving the heat dissipation effect of the first condenser 331.

[0077] In one embodiment of the present invention, the condenser 33 includes a second condenser 332 . The second condenser 332 is disposed in the fifth chamber 55 . A seventh vent 29 is formed on a side wall of the fifth chamber 55 .

[0078] In the above technical solution, the second condenser 332 is mainly used for heat dissipation, so that the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 32 is cooled and converted into liquid. The seventh vent 29 connects the fifth chamber 55 with the outdoors, so that the outdoor air passes through the second condenser 332 from the seventh vent 29 into the fifth chamber 55, and is then discharged to the outdoors through the eighth vent 30, realizing air convection, thereby improving the heat dissipation effect of the second condenser 332.

[0079] In one embodiment of the present invention, the ventilating opening further includes an eighth ventilating opening 30, the fan 6 further includes a third fan 63, the eighth ventilating opening 30 is arranged on the fifth chamber 55, the eighth ventilating opening 30 connects the fifth chamber 55 with the outdoors, and the third fan 63 is arranged on the eighth ventilating opening 30 to supply air to the outdoors.

[0080] In the above technical solution, the third fan 63 is arranged on the eighth vent 30 to supply air to the outside, which further accelerates the efficiency of air exchange between the fifth chamber 55 and the outside and improves the heat dissipation effect of the second condenser 332.

[0081] In one embodiment of the present invention, the air conditioning system further includes a filter, and the filter includes a first filter 91 . The first filter 91 is disposed on the first vent 21 .

[0082] In the above technical solution, the first filter 91 is arranged on the first vent 21 to preliminarily filter the air from the outside entering the first chamber 51 through the first vent 21 to prevent outdoor dust and other impurities from entering the cabinet 1 with the air and causing pollution to the air conditioning system and the interior.

[0083] In one embodiment of the present invention, the filter includes a second filter 92 , which is disposed on a side of the evaporator 31 facing the first chamber 51 .

[0084] In the above technical solution, since the evaporator 31 is arranged on the flow path of the cooling airflow, the second filter 92 is arranged on the side of the evaporator 31 facing the first chamber 51, and all the air passing through the evaporator 31 is filtered again. On the one hand, the cleanliness of the air flowing into the room is improved to prevent outdoor impurities from contaminating indoor equipment. On the other hand, it can also prevent impurities from covering the surface of the evaporator 31, resulting in an increase in the refrigeration energy consumption of the air-conditioning system.

[0085] In one embodiment of the present invention, the air conditioning system further includes a sensor, and the sensor includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged outdoors, and the second temperature sensor is arranged at the return air outlet 28 .

[0086] In the above technical solution, the first temperature sensor monitors the outdoor temperature, and the second temperature sensor is arranged at the return air outlet 28, so that the second temperature sensor is as far away from the cold air at the supply air outlet 27 as possible, reducing the interference of the cooling gas on the second temperature sensor, thereby improving the authenticity and accuracy of the indoor temperature monitored by the second temperature sensor.

[0087] In one embodiment of the present invention, the compressor 32 is disposed in the first chamber 51 .

[0088] In the above technical solution, by arranging the compressor 32 in the first chamber 51, the compressor 32 is kept as far away from the room as possible, thereby reducing the interference of noise and vibration to the indoor machine room. In addition, the return air or outdoor fresh air flowing through the first chamber 51 can also dissipate heat for the compressor 32, thereby preventing the compressor 32 from being in an overheated state for a long time, thereby improving the stability and service life of the compressor 32.

[0089] In one embodiment of the present invention, the cabinet 1 further includes a third cabinet 13 , and the first cabinet 11 , the second cabinet 12 , and the third cabinet 13 have the same length along the indoor air supply direction.

[0090] In the above technical solution, the first cabinet 11, the second cabinet 12 and the third cabinet 13 have the same length along the indoor air supply direction. The first cabinet 11, the second cabinet 12 and the third cabinet 13 with the same length are easy to arrange to form a cabinet group with an integrated structure. At the same time, after the cabinet group is arranged, the overall appearance is more neat and beautiful. In addition, after multiple cabinets with the same length are stacked, the overall unit can also have better stability.

[0091] In one embodiment of the present invention, the cabinet 1 further includes a third cabinet 13, and the first cabinet 11, the second cabinet 12 and the third cabinet 13 are arranged horizontally as a horizontal cabinet; or, the first cabinet 11, the second cabinet 12 and the third cabinet 13 are arranged vertically as a vertical cabinet.

[0092] In the above technical solution, the arrangement of the first cabinet 11, the second cabinet 12 and the third cabinet 13 can be adjusted so that the first cabinet 11, the second cabinet 12 and the third cabinet 13 are arranged horizontally as horizontal cabinets or vertically as vertical cabinets. The horizontal or vertical cabinet arrangement enables the air-conditioning system to adapt to different installation environments. For example, when the ground space is limited, a vertical arrangement can be selected, and when the height is limited, a horizontal arrangement can be selected. It is suitable for a variety of building types and space layouts.

[0093] In one embodiment of the present invention, a plurality of horizontal cabinets are stacked and installed, or a plurality of vertical cabinets are installed side by side.

[0094] In the above technical solution, multiple horizontal cabinets can be stacked and installed, or multiple vertical cabinets can be installed side by side according to actual needs. This installation method not only saves space, but also can flexibly adjust the cooling capacity of the system according to actual needs. It is suitable for scenarios that require rapid expansion or reduction of capacity, and it also facilitates system maintenance and management.

[0095] In one embodiment of the present invention, the second partition portion 42 includes a parallel section and a guide section, the two parallel sections are respectively arranged at both ends of the guide section, one end of the parallel section away from the guide section extends along the width direction of the second cabinet 12 to the side wall of the second cabinet 12 and is connected to the side wall, the two parallel sections are parallel to each other, and the guide section is a slope.

[0096] In the above technical solution, the parallel section is used to install and fix the guide section in the cabinet, and the guide section is used to change the direction of airflow, guide the airflow to flow toward the vent, reduce the resistance of the airflow in the cabinet, and improve the airflow circulation efficiency of the system; the two parallel sections are parallel to each other, and the guide section is an inclined surface, so that the second partition 42 forms a Z-shaped structure. The structure of this partition can significantly improve the space utilization of the third chamber 53 and the fourth chamber 54. At the same time, by adjusting the length of the parallel section, the direction of the inclined surface of the guide section can be adjusted, so that the inclined surface of the guide section is more accurately facing the vent, further improving the accuracy and efficiency of the airflow.

[0097] In one embodiment of the present invention, the fourth partition portion 44 includes a parallel section and a guide section, the two parallel sections are respectively arranged at both ends of the guide section, one end of the parallel section away from the guide section extends along the width direction of the third cabinet 13 to the side wall of the third cabinet 13 and is connected to the side wall, the two parallel sections are parallel to each other, and the guide section is a slope.

[0098] In the above technical solution, the parallel section is used to install and fix the guide section in the cabinet, and the guide section is used to change the direction of the airflow and guide the airflow to flow toward the vent. The two parallel sections are parallel to each other, and the guide section is an inclined surface, so that the fourth partition 44 forms a Z-shaped structure. The structure of this partition can significantly improve the space utilization of the fifth chamber 55 and the sixth chamber 56. At the same time, by adjusting the length of the parallel section, the direction of the inclined surface of the guide section can be adjusted, so that the inclined surface of the guide section is more accurately facing the vent, further improving the accuracy and efficiency of the airflow.

[0099] In one embodiment of the present invention, the air conditioning system further includes a wire hole 8 , which is disposed on the cabinet 1 .

[0100] In the above technical solution, after multiple horizontal cabinets are stacked and installed, or multiple vertical cabinets are installed side by side, the lines between the cabinets are passed through the line holes 8 to improve the convenience of installation. At the same time, hiding the lines in the cabinets can also make the appearance of the cabinets more neat and beautiful.

[0101] In one embodiment of the present invention, the first chamber 51 , the second chamber 52 , the third chamber 53 , the fourth chamber 54 , the fifth chamber 55 and the sixth chamber 56 together constitute the chamber 5 .

[0102] See also Figures 1 to 9As shown, the present invention provides a cooling method for an air conditioning system, comprising:

[0103] Get outdoor temperature data and indoor temperature data;

[0104] Control the air conditioning system to enter different cooling modes according to outdoor temperature data and indoor temperature data;

[0105] The cooling modes include: air conditioner cooling mode, mixed cooling mode and natural cooling mode.

[0106] In the above technical solution, outdoor temperature data is obtained by the first temperature sensor of the air-conditioning system, and indoor temperature data is obtained by the second temperature sensor. According to the outdoor temperature data and the indoor temperature data, the air-conditioning system is controlled to enter the air-conditioning cooling mode, the mixed cooling mode or the natural cooling mode. This cooling method can intelligently select the cooling mode according to the temperature difference between outdoor and indoor, thereby improving energy utilization efficiency and reducing operating costs.

[0107] In one embodiment of the present invention, the step of controlling the air conditioning system to enter different cooling modes according to the outdoor temperature data and the indoor temperature data comprises:

[0108] Compare the outdoor temperature data with the indoor temperature data to determine whether to control the air conditioning system to enter the air conditioning cooling mode;

[0109] If the outdoor temperature data is greater than or equal to the indoor temperature data, the air conditioning system is controlled to enter the air conditioning cooling mode;

[0110] If the outdoor temperature data is lower than the indoor temperature data, the difference between the outdoor and indoor temperature data is calculated based on the outdoor temperature data and the indoor temperature data, and the temperature data difference is compared with the mixed cooling temperature difference threshold and the natural cooling temperature difference threshold, and the cooling mode of the air conditioning system is selected according to the comparison result;

[0111] If the temperature data difference is greater than or equal to the mixed cooling temperature difference threshold and less than or equal to the natural cooling temperature difference threshold, the air conditioning system is controlled to enter the mixed cooling mode;

[0112] If the temperature data difference is less than the mixed cooling temperature difference threshold, the air conditioning system is controlled to enter the air conditioning cooling mode;

[0113] If the temperature data difference is greater than the natural cooling temperature difference threshold, the air conditioning system is controlled to enter the natural cooling mode.

[0114] In the above technical solution, when the outdoor temperature data is greater than or equal to the indoor temperature data, the air conditioner cooling mode is used to cool the indoor temperature to prevent the high outdoor temperature air from entering the cabinet and adding additional cooling burden to the air conditioning system; when the outdoor temperature data is lower than the indoor temperature data, the difference between the outdoor and indoor temperature data is compared with the mixed cooling temperature difference threshold and the natural cooling temperature difference threshold, and the cooling mode with lower energy consumption under the current indoor and outdoor temperature conditions is selected for the air conditioning system.

[0115] When the temperature data difference is greater than or equal to the mixed cooling temperature difference threshold and less than or equal to the natural cooling temperature difference threshold, the air-conditioning system is controlled to enter the mixed cooling mode. At this time, directly introducing outdoor air with a lower temperature can have a certain cooling effect on the indoor temperature. However, since the temperature difference between indoor and outdoor is not large enough, the cooling effect of directly introducing outdoor air on the indoor temperature is limited and the indoor temperature cannot be lowered to a suitable temperature. Therefore, it is necessary to turn on the air conditioner at the same time to participate in cooling to further reduce the temperature of the outdoor air and the return hot air. At this time, the temperature of the mixed air in the first chamber 51 in the mixed cooling mode is lower than the temperature of the return hot air in the first chamber 51 in the air conditioner cooling mode. Therefore, the refrigeration burden of the evaporator 31 in the mixed cooling mode is smaller, thereby reducing the refrigeration energy consumption of the air-conditioning system.

[0116] When the temperature data difference is less than the mixed cooling temperature difference threshold, since the indoor and outdoor temperature difference is too small, directly introducing outdoor air cannot significantly reduce the indoor temperature. At this time, in order to ensure the suitability and stability of the indoor temperature environment, the air-conditioning system is controlled to enter the air-conditioning cooling mode, thereby ensuring a good indoor cooling effect.

[0117] When the temperature data difference is greater than the natural cooling temperature difference threshold, the air-conditioning system is controlled to enter the natural cooling mode. At this time, there is no need to start the air conditioner for cooling. Directly introducing the outdoor air with a lower temperature can have a better cooling effect on the indoor environment. Compared with the air conditioner cooling mode and the mixed cooling mode, the air-conditioning system does not need to start the refrigeration system in the natural cooling mode, which greatly reduces the energy consumption and operating costs of the air-conditioning system.

[0118] In one embodiment of the present invention, the step of controlling the air conditioning system to enter the air conditioning cooling mode comprises:

[0119] Control the second ventilation valve 72 and the third ventilation valve 73 to be closed, and control the first ventilation valve 71 to be opened;

[0120] Control the first fan 61, the second fan 62 and the third fan 63 to be in operation;

[0121] The compressor 32 is controlled to be in the running state.

[0122] In the above technical scheme, the second ventilation valve 72 is controlled to be closed, the first ventilation valve 71 is controlled to be opened, and the compressor 32 is controlled to be in operation, so that the hot air in the room flows back from the return air port 28 into the third chamber 53, and then enters the first chamber 51 through the second ventilation port 22. In the first chamber 51, the hot air flows through the evaporator 31 to cool the hot air and form cold air with a lower temperature. At the same time, the third ventilation valve 73 is controlled to be closed to prevent the high outdoor temperature air from entering the first chamber 51 and adding a burden to the refrigeration system. The cooled cold air enters the second chamber 52, and the first fan 61 is controlled to be in operation, so that the cold air in the second chamber 52 is blown into the room through the air supply port 27 driven by the first fan 61, thereby reducing the indoor temperature.

[0123] The second fan 62 is controlled to be in operation state, so that outdoor air passes through the first condenser 331 from the sixth vent 26 into the fourth chamber 54, and then the second fan 62 discharges the air to the outside through the fourth vent 24, thereby achieving air circulation in the fourth chamber 54 and improving the heat dissipation effect of the first condenser 331.

[0124] The third fan 63 is controlled to be in operation state, so that outdoor air passes through the second condenser 332 from the seventh vent 29 into the fifth chamber 55, and then the third fan 63 discharges the air to the outside through the eighth vent 30, thereby achieving air circulation in the fifth chamber 55 and improving the heat dissipation effect of the second condenser 332.

[0125] In one embodiment of the present invention, the step of controlling the air conditioning system to enter the hybrid cooling mode includes:

[0126] Control the first ventilation valve 71 to be closed, and control the second ventilation valve 72 and the third ventilation valve 73 to be opened;

[0127] Control the first fan 61, the second fan 62 and the third fan 63 to be in operation;

[0128] The compressor 32 is controlled to be in the running state.

[0129] In the above technical solution, the first ventilation valve 71 is controlled to be closed, the second ventilation valve 72 is controlled to be opened, and the second fan 62 is controlled to be in operation, so that the indoor hot air flows back into the third chamber 53, and then the hot air enters the fourth chamber 54 through the second ventilation valve 72 driven by the second fan 62. At the same time, the second fan 62 draws the outside air from the sixth vent 26 through the first condenser 331 into the fourth chamber 54, and then the second fan 62 blows the hot air in the fourth chamber 54 to the outside.

[0130] The third ventilation valve 73 is controlled to be opened, the first fan 61 is controlled to be in operation, and the compressor 32 is controlled to be in operation. Driven by the first fan 61, outdoor air is sucked into the first chamber 51 through the first vent 21, and then the outdoor air passes through the evaporator 31. After being cooled by the evaporator 31, cold air with a lower temperature is formed. The cooled cold air enters the second chamber 52, and the first fan 61 blows the cold air in the second chamber 52 into the room through the air supply port 27, thereby lowering the indoor temperature.

[0131] The third fan 63 is controlled to be in operation state, so that outdoor air passes through the second condenser 332 from the seventh vent 29 into the fifth chamber 55, and then the third fan 63 discharges the air to the outside through the eighth vent 30, thereby achieving air circulation in the fifth chamber 55 and improving the heat dissipation effect of the second condenser 332.

[0132] In one embodiment of the present invention, the step of controlling the air conditioning system to enter the natural cooling mode includes:

[0133] Control the first ventilation valve 71 to be closed, and control the second ventilation valve 72 and the third ventilation valve 73 to be opened;

[0134] Control the first fan 61 and the second fan 62 to be in a running state, and control the third fan 63 to be in a stopped state;

[0135] The compressor 32 is controlled to be in a stopped state.

[0136] In the above technical solution, the first ventilation valve 71 is controlled to be closed, the second ventilation valve 72 is controlled to be opened, and the second fan 62 is controlled to be in operation, so that the indoor hot air flows back into the third chamber 53, and then the hot air enters the fourth chamber 54 through the second ventilation valve 72 driven by the second fan 62. At the same time, the second fan 62 draws the outside air from the sixth vent 26 through the first condenser 331 into the fourth chamber 54, and then the second fan 62 blows the hot air in the fourth chamber 54 to the outside.

[0137] The third ventilation valve 73 is controlled to be open, and the first fan 61 is controlled to be in operation. Driven by the first fan 61, outdoor air is sucked into the first chamber 51 through the first vent 21, and then the outdoor air passes through the evaporator 31 into the second chamber 52. The first fan 61 blows the outdoor air in the second chamber 52 into the room through the air supply port 27, thereby lowering the indoor temperature.

[0138] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: the cabinet 1 is used to fix and protect the components arranged in the cabinet 1, and the refrigeration system is mainly used to realize the function of the refrigeration cycle of the air-conditioning system. The refrigeration system includes a compressor 32, an evaporator 31 and a condenser 33, wherein the evaporator 31 is mainly used to absorb the heat of the air in the first cabinet 11. When the return air flow passes through the evaporator, the internal refrigerant will evaporate from liquid to gas. This process requires the absorption of a large amount of heat, thereby cooling the air in the first cabinet 11. The compressor 32 is used to drive the refrigerant to flow, and at the same time compress the low-temperature and low-pressure gaseous refrigerant from the evaporator 31 into a high-temperature and high-pressure gas, so that the refrigerant can effectively release heat in the condenser 33. The condenser 33 is used to cool the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 32 and convert it into a liquid state. In this process, the heat released by the refrigerant is discharged to the outdoor environment and recooled to a liquid state, and then the refrigerant is sent to the evaporator 31 again to evaporate and absorb heat, thereby completing a refrigeration cycle; the first fan 61 is used to drive the air flow, and the first fan 61 corresponds to the delivery The air outlet 27 is provided to supply air to the air supply outlet 27, and the air supply outlet 27 connects the first cabinet 11 with the room, and the air cooled by the refrigeration system in the first cabinet 11 is blown into the room through the first fan 61, thereby reducing the indoor temperature; the return air outlet 28 is provided on the second cabinet 12 to connect the room with the second cabinet 12, ensuring that the hot air in the room can flow back into the cabinet 1 under the action of the gas pressure difference between the room and the cabinet 1; the air supply outlet 27 and the return air outlet 28 are provided on the same side of the cabinet 1, so that the cabinet 1 is connected with the room, thereby ensuring that the air can circulate between the room and the cabinet 1, and the air can be circulated between the room and the cabinet 1. The air cooled by the superrefrigeration system is blown into the room through the air supply port 27 under the action of the fan to cool the room. Under the action of air pressure, the hot air in the room away from the air supply port 27 flows back to the cabinet 1 through the return air port 28, is recooled and blown into the room again, thereby realizing the circulation of cooled air. By arranging the evaporator 31 on the air circulation path between the air supply port 27 and the return air port 28 in the cabinet 1, the air is in contact with the evaporator 31 as much as possible during the circulation process, thereby improving the cooling effect of the evaporator 31 on the air.

[0139] The present invention provides an air-conditioning system, which can cool down the indoor environment by setting the refrigeration system in an outdoor cabinet 1. There is no need to set the indoor unit inside the data center, so that the air-conditioning system avoids occupying the computer room space, improves the utilization rate of the computer room space, reduces the installation difficulty and installation cost of the air-conditioning system, and thus achieves the effect of reducing the operating cost of the data center.

[0140] Obviously, the above described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0141] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0142] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioning system, characterized in that: include: A cabinet (1), the cabinet (1) being arranged outdoors, the cabinet (1) comprising a first cabinet (11) and a second cabinet (12), the first cabinet (11) being in communication with the second cabinet (12); A vent, the vent comprising an air supply vent (27) and an air return vent (28), the air supply vent (27) connecting the room with the first cabinet (11), the air return vent (28) being arranged on the second cabinet (12) connecting the room with the second cabinet (12), the air supply vent (27) and the air return vent (28) being arranged on the same side of the cabinet (1); A fan (6), the fan (6) comprising a first fan (61), the first fan (61) being arranged corresponding to the air supply port (27) and supplying air toward the air supply port (27); A refrigeration system, the refrigeration system comprising a compressor (32), an evaporator (31) and a condenser (33), the evaporator (31) and the compressor (32) being arranged in the first cabinet (11), the condenser (33) being arranged outside the first cabinet (11), and the evaporator (31) being located between the air supply port (27) and the air return port (28).

2. The air conditioning system according to claim 1, characterized in that: The air conditioning system further comprises a partition (4), the partition (4) comprising a first partition (41), the vent further comprises a first vent (21) and a second vent (22), the first vent (21) being arranged on the first cabinet (11) and connecting the outside with the first cabinet (11), the first partition (41) separating the first cabinet (11) from the second cabinet (12), the second vent being arranged on the first partition (41) and connecting the first cabinet (11) with the second cabinet (12), the air conditioning system further comprises a ventilation valve (7), the ventilation valve (7) comprising a first A ventilation valve (71), wherein the first ventilation valve (71) is arranged at the second ventilation port (22), the evaporator (31) divides the first cabinet (11) into a first chamber (51) and a second chamber (52), the first ventilation port (21) connects the outside with the first chamber (51), the air supply port (27) connects the inside with the second chamber (52), and the second ventilation port (22) connects the first chamber (51) with the second cabinet (12); and / or the ventilation valve (7) further includes a third ventilation valve (73), wherein the third ventilation valve (73) is arranged on the first ventilation port (21).

3. The air conditioning system according to claim 2, characterized in that: The ventilating opening further comprises a third ventilating opening (23) and a fourth ventilating opening (24); the partition (4) further comprises a second partition (42); the ventilation valve (7) further comprises a second ventilation valve (72); the fan (6) further comprises a second fan (62); the second partition (42) divides the second cabinet (12) into a third chamber (53) and a fourth chamber (54); the return air port (28) connects the interior of the room with the third chamber (53); the second ventilating opening (22) is arranged on the first partition (41) and The third chamber (53) is connected with the first chamber (51), the third vent (23) is arranged on the second partition (42) to connect the third chamber (53) with the fourth chamber (54), the second ventilation valve (72) is arranged on the third vent (23), the fourth vent (24) is arranged on the fourth chamber (54) and connects the fourth chamber (54) with the outdoors, the second fan (62) is arranged on the fourth vent (24), and the second fan (62) supplies air to the outdoors.

4. The air conditioning system according to claim 3, characterized in that: The cabinet (1) further comprises a third cabinet (13); the partition (4) further comprises a third partition (43) and a fourth partition (44); the vent further comprises a fifth vent (25); the third partition (43) separates the first cabinet (11) and the third cabinet (13); the fourth partition (44) is arranged in the third cabinet (13) to separate the third cabinet (13) into a fifth chamber (55) and a sixth chamber (56); the fifth vent (25) is arranged on the third partition (43) and connects the second chamber (52) and the sixth chamber (56); the air supply port (27) is arranged on the third cabinet (13) and connects the sixth chamber (56) with the room; the first fan (61) is arranged at the fifth vent (25) and supplies air to the room.

5. The air conditioning system according to claim 3, characterized in that: The condenser (33) comprises a first condenser (331), wherein the first condenser (331) is arranged in the fourth chamber (54), and a sixth vent (26) is opened on the side wall of the fourth chamber (54), and the sixth vent (26) connects the fourth chamber (54) with the outdoors.

6. The air conditioning system according to claim 4, characterized in that: The condenser (33) includes a second condenser (332), which is arranged in the fifth chamber (55), and a seventh vent (29) is opened on the side wall of the fifth chamber (55); and / or the vent also includes an eighth vent (30), and the fan (6) also includes a third fan (63), the eighth vent (30) is arranged on the fifth chamber (55), the eighth vent (30) connects the fifth chamber (55) with the outdoors, and the third fan (63) is arranged on the eighth vent (30) to supply air to the outdoors.

7. The air conditioning system according to claim 2, characterized in that: The air conditioning system further comprises a filter, wherein the filter comprises a first filter (91), wherein the first filter (91) is arranged on the first vent (21); and / or the filter comprises a second filter (92), wherein the second filter (92) is arranged on a side of the evaporator (31) facing the first chamber (51).

8. The air conditioning system according to claim 2, characterized in that: The air conditioning system further comprises a sensor, wherein the sensor comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged outdoors, and the second temperature sensor is arranged at the return air outlet (28).

9. The air conditioning system according to claim 2, characterized in that: The compressor (32) is disposed in the first chamber (51).

10. The air conditioning system according to claim 1, characterized in that: The cabinet (1) further comprises a third cabinet (13); the first cabinet (11), the second cabinet (12) and the third cabinet (13) have the same length along the indoor air supply direction.

11. The air conditioning system according to claim 1, characterized in that: The cabinet (1) further comprises a third cabinet (13); the first cabinet (11), the second cabinet (12) and the third cabinet (13) are arranged horizontally to form a horizontal cabinet; or the first cabinet (11), the second cabinet (12) and the third cabinet (13) are arranged vertically to form a vertical cabinet.

12. The air conditioning system according to claim 11, characterized in that: A plurality of the horizontal cabinets are installed in a stacked manner, or a plurality of the vertical cabinets are installed in a side-by-side manner.

13. The air conditioning system according to claim 4, characterized in that: The second partition (42) comprises a parallel section and a guide section, the two parallel sections are respectively arranged at the two ends of the guide section, one end of the parallel section away from the guide section extends along the width direction of the second cabinet (12) to the side wall of the second cabinet (12) and is connected to the side wall, the two parallel sections are parallel to each other, and the guide section is an inclined surface; and / or the fourth partition (44) comprises a parallel section and a guide section, the two parallel sections are respectively arranged at the two ends of the guide section, one end of the parallel section away from the guide section extends along the width direction of the third cabinet (13) to the side wall of the third cabinet (13) and is connected to the side wall, the two parallel sections are parallel to each other, and the guide section is an inclined surface.

14. A cooling method for an air conditioning system according to any one of claims 1 to 13, characterized in that: include: Get outdoor temperature data and indoor temperature data; Controlling the air conditioning system to enter different cooling modes according to the outdoor temperature data and the indoor temperature data; The cooling modes include: air conditioner cooling mode, mixed cooling mode and natural cooling mode.

15. The cooling method of the air conditioning system according to claim 14, characterized in that: The step of controlling the air conditioning system to enter different cooling modes according to the outdoor temperature data and the indoor temperature data comprises: Comparing the outdoor temperature data with the indoor temperature data to determine whether to control the air conditioning system to enter the air conditioning cooling mode; If the outdoor temperature data is greater than or equal to the indoor temperature data, controlling the air conditioning system to enter the air conditioning cooling mode; If the outdoor temperature data is lower than the indoor temperature data, the temperature data difference between the outdoor and indoor temperature data is calculated according to the outdoor temperature data and the indoor temperature data, and the temperature data difference is compared with the mixed cooling temperature difference threshold and the natural cooling temperature difference threshold, and the cooling mode of the air conditioning system is selected according to the comparison result; If the temperature data difference is greater than or equal to the mixed cooling temperature difference threshold and less than or equal to the natural cooling temperature difference threshold, controlling the air conditioning system to enter the mixed cooling mode; If the temperature data difference is less than the mixed cooling temperature difference threshold, controlling the air conditioning system to enter the air conditioner cooling mode; If the temperature data difference is greater than the natural cooling temperature difference threshold, the air conditioning system is controlled to enter the natural cooling mode.

16. The cooling method of the air conditioning system according to claim 15, characterized in that: The step of controlling the air conditioning system to enter the air conditioning cooling mode comprises: Controlling the second ventilation valve (72) and the third ventilation valve (73) to be closed, and controlling the first ventilation valve (71) to be opened; Controlling the first fan (61), the second fan (62) and the third fan (63) to be in an operating state; The compressor (32) is controlled to be in an operating state.

17. The cooling method of the air conditioning system according to claim 15, characterized in that: The step of controlling the air conditioning system to enter the hybrid cooling mode comprises: Controlling the first ventilation valve (71) to be closed, and controlling the second ventilation valve (72) and the third ventilation valve (73) to be opened; Controlling the first fan (61), the second fan (62) and the third fan (63) to be in an operating state; The compressor (32) is controlled to be in an operating state.

18. The cooling method of the air conditioning system according to claim 15, characterized in that: The step of controlling the air conditioning system to enter the natural cooling mode comprises: Controlling the first ventilation valve (71) to be closed, and controlling the second ventilation valve (72) and the third ventilation valve (73) to be opened; Controlling the first fan (61) and the second fan (62) to be in a running state, and controlling the third fan (63) to be in a stopped state; The compressor (32) is controlled to be in a stopped state.

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