Cabinet air conditioner and heat exchange method thereof

Abstract

This invention provides a rack-mounted air conditioner and a heat exchange method for it, belonging to the field of air conditioning technology. It includes a heat exchange zone comprising a first heat exchange area and a second heat exchange area separated from each other; a heat exchanger comprising a first heat exchanger and a second heat exchanger; the first heat exchange area is connected to the internal environment of the rack and contains the first heat exchanger; the second heat exchange area is connected to the external environment of the rack and contains the second heat exchanger; a first fan assembly and a second fan assembly; the air inlet of the first fan assembly is connected to the internal environment of the rack, and the air outlet can be selectively connected to either the first or second heat exchange area; the air inlet of the second fan assembly is connected to the external environment of the rack, and the air outlet can be selectively connected to either the first or second heat exchange area. This invention adds a fresh air system to an existing refrigerant-cooled system, fully utilizing natural cooling capacity to exchange heat inside the rack when the external ambient temperature is low.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a cabinet air conditioner and a heat exchange method for a cabinet air conditioner. Background Technology

[0002] Currently, due to the increase in the number of base stations and the significant increase in equipment heat generation, the demand for cabinet air conditioners has increased. The cabinet air conditioners on the market are all single refrigerant-cooled air conditioning systems. When the external temperature is relatively low, the airtightness of the cabinet makes it difficult for heat exchange between the internal and external environments of the cabinet. It is necessary to start the refrigerant-cooled system of the cabinet air conditioner to cool down, which increases electricity costs and energy consumption. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this invention proposes a cabinet air conditioner and a cabinet air conditioner heat exchange method.

[0004] The first aspect of this invention provides a cabinet air conditioner, comprising: The heat exchange zone includes a phase-isolated first heat exchange zone and a second heat exchange zone. The heat exchanger includes a first heat exchanger and a second heat exchanger. The first heat exchange zone is connected to the internal environment of the cabinet and a first heat exchanger is provided in the first heat exchange zone; the second heat exchange zone is connected to the external environment of the cabinet and a second heat exchanger is provided in the second heat exchange zone. A first fan assembly and a second fan assembly. The air inlet of the first fan assembly is connected to the internal environment of the cabinet, and the air outlet can be selectively connected to either the first heat exchange area or the second heat exchange area. The air inlet of the second fan assembly is connected to the external environment of the cabinet, and the air outlet can be selectively connected to either the first heat exchange area or the second heat exchange area.

[0005] In the above technical solution, the first heat exchanger and the second heat exchanger are arranged opposite to each other along the first direction, and the first fan assembly and the second fan assembly are arranged opposite to each other along the second direction. The first heat exchange zone is provided with a first air inlet A and a first air inlet B opposite each other in the second direction, and the second heat exchange zone is provided with a second air inlet A and a second air inlet B opposite each other in the second direction. The first fan assembly can be controlled to reciprocate along a first direction to selectively connect with the first heat exchange area through the first air inlet A or to selectively connect with the second heat exchange area through the second air inlet A. The second fan assembly can be controlled to reciprocate along a first direction to selectively connect with the first heat exchange area through the first air inlet B or to selectively connect with the second heat exchange area through the second air inlet B.

[0006] In the above technical solution, the air outlets of both the first fan assembly and the second fan assembly are positioned directly opposite the air inlet of the heat exchange zone. The rack-mounted air conditioner also includes a first drive component and a second drive component; The output end of the first drive unit is connected to the first fan assembly and can drive the first fan assembly to reciprocate along the first direction, so that the air outlet of the first fan assembly is connected to the first heat exchange area or to the second heat exchange area. The output end of the second drive unit is connected to the second fan assembly and can drive the second fan assembly to reciprocate along the first direction, so that the air outlet of the second fan assembly is connected to the first heat exchange area or to the second heat exchange area.

[0007] In the above technical solution, the first fan assembly includes a first fan, a first fan mounting base and a first fan guide rail. The first fan is mounted on the first fan mounting base, the first fan mounting base is slidably disposed on the first fan guide rail, the first fan guide rail is disposed through the first heat exchange area and the second heat exchange area along a first direction, and the output end of the first drive component is connected to the first fan mounting base. The second fan assembly includes a second fan, a second fan mounting base, and a second fan guide rail. The second fan is mounted on the second fan mounting base, and the second fan mounting base is slidably disposed on the second fan guide rail. The second fan guide rail is disposed along a first direction, passing through the first heat exchange area and the second heat exchange area. The output end of the second drive unit is connected to the second fan mounting base.

[0008] In the above technical solution, the cabinet air conditioner also includes a first switching component and a second switching component arranged opposite to each other along the second direction; The first on / off component can be driven to reciprocate along a first direction to open the first air inlet A or the second air inlet A; The second on / off component can be driven to reciprocate along the second direction to open the first air inlet B or the second air inlet B; The first heat exchange area and the second heat exchange area are isolated by controlling the connection status between the first on / off component, the second on / off component and the first air inlet A, the second air inlet A, the first air inlet B and the second air inlet B.

[0009] In the above technical solution, the cabinet air conditioner includes a casing, a first switching component is located at the top of the casing, and a second switching component is located at the bottom of the casing. The first switching assembly includes a first baffle, a first guide rail, and a first electric motor. The first baffle is fixedly connected to the first guide rail, the output end of the first electric motor is connected to the first guide rail, and the first guide rail is connected to the top of the housing. The second on / off assembly includes a second baffle, a second guide rail, and a second electric motor. The second baffle is fixedly connected to the second guide rail, the output end of the second electric motor is connected to the second guide rail, and the second guide rail is connected to the bottom of the housing.

[0010] In the above technical solution, a first baffle is provided on the side of the first fan mounting base facing the external environment of the cabinet, and a second baffle is provided on the side of the second fan mounting base facing the internal environment of the cabinet. A first channel is provided near the top of the casing and a second channel is provided near the bottom of the casing between the first heat exchange zone and the second heat exchange zone; When the first fan is connected to the first heat exchange area, the first baffle plate blocks the first channel; when the second fan is connected to the second heat exchange area, the second baffle plate blocks the second channel.

[0011] In the above technical solution, the cabinet air conditioner also includes a first water-proof zone and a second water-proof zone arranged opposite to each other along the second direction, and both the first water-proof zone and the second water-proof zone penetrate the first heat exchange area and the second heat exchange area. The first channel is located between the first water-proof zone and the heat exchange zone. The first fan can be driven to move through the first channel so that the air outlet of the first fan can be connected to the first heat exchange zone or the second heat exchange zone. The second channel is located between the second water-proof zone and the heat exchange zone. The second fan can be driven to move through the second channel so that the air outlet of the second fan can be connected to the first heat exchange zone or the second heat exchange zone. The first fan guide rail is located in the first water-proof zone, and the first fan can slide along the first fan guide rail via the first fan mounting base. The second fan guide rail is located in the second water-proof zone, and the second fan can slide along the second fan guide rail via the second fan mounting base.

[0012] In the above technical solution, the first water-proof zone is located at the top of the casing, and the second water-proof zone is located at the bottom of the casing. The first waterproof zone is formed by the first waterproof outer shell located at the top of the casing and the casing itself, and the second waterproof zone is formed by the second waterproof outer shell located at the bottom of the casing and the casing itself. The first waterproof outer shell is provided with a first clearance groove that runs through the first heat exchange area and the second heat exchange area. Part of the first fan mounting base is slidably mounted on the first guide rail through the first clearance groove, and the other part is attached to the surface of the first waterproof outer shell. The second waterproof outer shell is provided with a second clearance groove that runs through the first heat exchange area and the second heat exchange area. Part of the second fan mounting base is slidably mounted on the second guide rail through the second clearance groove, and the other part is attached to the surface of the second waterproof outer shell. The bottom of the casing is provided with a drain hole, which is located in the second heat exchange area and connected to the second water-proof area.

[0013] In the above technical solution, the cabinet air conditioner also includes a control area isolated from the heat exchange area, and the control area is equipped with a compressor and a control box; The first heat exchanger is an evaporator located in the heat exchange zone, and the second heat exchanger is a condenser located in the heat exchange zone.

[0014] In the above technical solutions, the rack-mounted air conditioner has at least the following operating modes: In the heat exchange working mode of the fluorinated cooling system, the air outlet of the first fan assembly is connected to the first heat exchange area, and the air outlet of the second fan assembly is connected to the second heat exchange area. In the heat exchange working mode of the fresh air system, the air outlet of the first fan assembly is connected to the second heat exchange area, and the air outlet of the second fan assembly is connected to the first heat exchange area.

[0015] In the above technical solution, the rack air conditioner also includes: Temperature sensor, used to detect the ambient temperature outside the cabinet; Humidity sensor, used to detect the humidity of the external environment of the cabinet; The controller selects whether to activate the refrigerant cooling system's heat exchange mode or the fresh air system's heat exchange mode based on the external ambient temperature and humidity.

[0016] A second aspect of this invention provides a heat exchange method for a rack-mounted air conditioner, applied to the aforementioned rack-mounted air conditioner. The heat exchange method includes: When the rack air conditioner is powered on, it acquires the external ambient temperature and humidity, and determines whether to activate the refrigerant cooling system heat exchange mode or the fresh air system heat exchange mode based on the external ambient temperature and humidity.

[0017] In the above technical solutions, the methods for determining whether to activate the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature and humidity include: Compare the external ambient humidity value x1 with the preset humidity value x; If x1≥X, the heat exchange working mode of the fluorine cooling system is activated; If x1 < X, determine whether to start the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature value t1.

[0018] In the above technical solution, the method for determining whether to activate the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature value t1 includes: Calculate the difference T1 between the external ambient temperature t1 and the preset ambient temperature t, and compare the difference T1 with the preset difference T. Based on the comparison result, determine whether to start the heat exchange working mode of the fluorinated cooling system or the heat exchange working mode of the fresh air system. If T1≤T, the refrigerant cooling system heat exchange mode is activated; if T1>T, the fresh air system heat exchange mode is activated. In the fresh air system heat exchange mode, the compressor, the first heat exchanger, and the second heat exchanger are turned off.

[0019] In the above technical solution, during the operation of the cabinet air conditioner, the temperature and humidity of the external environment of the cabinet are continuously monitored, and the heat exchange working mode of the refrigerant cooling system and the heat exchange working mode of the fresh air system are adaptively switched according to the changes in temperature and humidity.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: I. In this embodiment of the invention, by changing the connection state between the air outlet of the fan assembly and different heat exchange areas, air from different areas can be used to dissipate heat from the cabinet. Specifically, when the external ambient temperature of the cabinet is high, the air inlet of the first fan assembly is connected to the internal environment of the cabinet, and the air outlet is connected to the first heat exchange area; the air inlet of the second fan assembly is connected to the external environment of the cabinet, and the air outlet is connected to the second heat exchange area. The cabinet air conditioner operates normally with the refrigerant cooling system. When the external ambient temperature of the cabinet is low, the air outlet of the second fan assembly can be set to connect to the first heat exchange area, while the air outlet of the first fan assembly can be set to connect to the second heat exchange area. Since the air inlet of the second fan assembly is connected to the external environment, natural cold air from the outside can be sent into the first heat exchange area to cool the inside of the cabinet. In this case, the cabinet air conditioner does not need to start the compressor, i.e., it does not need to run the refrigerant cooling system to cool the inside of the cabinet. In other words, the cabinet air conditioner in this embodiment of the invention can fully utilize the external ambient temperature to cool the working environment inside the cabinet by controlling the connection between the fan assembly and different heat exchange areas without changing the structure of the original refrigerant circulation system. This eliminates the need to start the cabinet's refrigerant cooling system and reduces the energy consumption of the cabinet air conditioning unit. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] Figure 1 This is a front view structural diagram of an embodiment of the cabinet air conditioner of the present invention; Figure 2 This is a rear view structural diagram of an embodiment of the cabinet air conditioner of the present invention; Figure 3 for Figure 1 The first cross-sectional view of the heat exchange area AA of the cabinet air conditioner in the embodiment shows the heat exchange working mode of the cabinet air conditioner operating the refrigerant cooling system. Figure 4 for Figure 1 The second cross-sectional view of the heat exchange area AA of the cabinet air conditioner in the embodiment shows the cabinet air conditioner operating in the heat exchange mode of the fresh air system. Figure 5 This is a schematic diagram of the first operation of the second on / off component in the embodiment of the cabinet air conditioner of the present invention. At this time, the cabinet air conditioner is operating in the heat exchange mode of the refrigerant cooling system. Figure 6 This is a schematic diagram of the second operation of the second on / off component in the embodiment of the cabinet air conditioner of the present invention. At this time, the cabinet air conditioner operates in the heat exchange mode of the fresh air system. Figure 7 This is a schematic diagram of the structure of the second water-proof zone in an embodiment of the cabinet air conditioner of the present invention; Figure 8 This is a schematic diagram of the control logic during heat exchange in an embodiment of the cabinet air conditioner of the present invention; Wherein: 1-First heat exchange zone; 11-First air inlet A, 12-First air inlet B; 2-Second heat exchange zone; 21-Second air inlet A; 22-Second air inlet B; 3-First heat exchanger; 4-Second heat exchanger; 5-First fan assembly; 521-First baffle; 6-Second fan assembly; 61-Second fan; 62-Second fan mounting base; 621-Second baffle; 63-Second fan guide rail; 7-Second baffle; 8-Second guide rail; 9-Second electric motor; 10-First water-proof zone; 110-Second water-proof zone; 111-Second water-proof outer shell; 1111-Second clearance groove; 13-Drain hole; 14-Compressor; 15-Control box; 16-First channel; 17-Second channel; Detailed Implementation Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0023] Currently, existing rack air conditioners require the activation of their refrigerant cooling system to cool the interior of the rack, significantly increasing electricity costs and energy consumption. This invention addresses this by altering the connection between the fan assembly's outlet and different heat exchange areas, allowing the use of air from different zones to dissipate heat from the rack. Specifically, when the external ambient temperature is high, the inlet of the first fan assembly connects to the internal environment of the rack, and the outlet connects to the first heat exchange area. The inlet of the second fan assembly connects to the external environment, and the outlet connects to the second heat exchange area. The rack air conditioner operates its refrigerant cooling system normally. When the external ambient temperature is low, the outlet of the second fan assembly can be connected to the first heat exchange area, while the outlet of the first fan assembly connects to the second heat exchange area. Since the inlet of the second fan assembly is connected to the external environment, naturally cool air can be introduced into the first heat exchange area to cool the interior of the rack. In this case, the rack air conditioner does not need to activate its compressor, i.e., it does not need to operate its refrigerant cooling system to cool the interior of the rack. In other words, the cabinet air conditioner in this embodiment of the invention can fully utilize the external ambient temperature to cool the working environment inside the cabinet by controlling the connection between the fan assembly and different heat exchange areas without changing the structure of the original refrigerant circulation system. This eliminates the need to start the cabinet's refrigerant cooling system and reduces the energy consumption of the cabinet air conditioning unit.

[0024] The following is in conjunction with the appendix Figure 1-8 The technical solution of this embodiment is described in detail. Unless otherwise specified, the following implementation methods and embodiments can be combined with each other.

[0025] Example On the one hand, such as Figure 1-4 As shown, this embodiment proposes a rack-mounted air conditioner, wherein the rack-mounted air conditioner includes: The heat exchange zone includes a phase-isolated first heat exchange zone 1 and a second heat exchange zone 2. The heat exchanger includes a first heat exchanger 3 and a second heat exchanger 4. The first heat exchange area 1 is connected to the internal environment of the cabinet and a first heat exchanger 3 is provided in the first heat exchange area 1; the second heat exchange area 2 is connected to the external environment of the cabinet and a second heat exchanger 4 is provided in the second heat exchange area 2. The first fan assembly 5 and the second fan assembly 6 are connected. The air inlet of the first fan assembly 5 is connected to the internal environment of the cabinet, and the air outlet can be connected to either the first heat exchange area 1 or the second heat exchange area 2. The air inlet of the second fan assembly 6 is connected to the external environment of the cabinet, and the air outlet can be connected to either the first heat exchange area 1 or the second heat exchange area 2. When the air outlet of the first fan assembly 5 is connected to the first heat exchange area 1, the air outlet of the second fan assembly 6 is connected to the second heat exchange area 2.

[0026] In this embodiment of the invention, by changing the connection state between the air outlet of the fan assembly (first fan assembly 5 and second fan assembly 6) and different heat exchange areas (first heat exchange area 1 and second heat exchange area 2), air from different areas can be used to dissipate heat from the cabinet. Specifically, when the external ambient temperature of the cabinet is high, the air inlet of the first fan assembly 5 is connected to the internal environment of the cabinet, and the air outlet is connected to the first heat exchange area 1; the air inlet of the second fan assembly 6 is connected to the external environment of the cabinet, and the air outlet is connected to the second heat exchange area 2. The cabinet air conditioner operates normally with the refrigerant cooling system. When the external ambient temperature of the cabinet is low, the air outlet of the first fan assembly 5 can be connected to the second heat exchange zone 2, and the air outlet of the second fan assembly 6 can be connected to the first heat exchange zone 1. Since the air inlet of the second fan assembly 6 is always connected to the external environment, when the second fan assembly is started, cold air from the outside can be sent into the first heat exchange zone 1 to cool the inside of the cabinet. At this time, the cabinet air conditioner does not need to start the compressor, that is, it does not need to run the refrigerant cooling system to cool the inside of the cabinet, thus reducing energy consumption. That is, the cabinet air conditioner in this embodiment of the invention, without changing the structure of the original refrigerant circulation system, can make full use of the external ambient temperature to cool the working environment inside the cabinet simply by controlling the connection state between the fan assembly and different heat exchange zones, without having to start the cabinet's refrigerant cooling system, thus reducing the energy consumption of the cabinet air conditioning unit.

[0027] Specifically, such as Figure 3 and Figure 4 As shown, the first heat exchanger 3 and the second heat exchanger 4 are arranged opposite each other along the first direction, and the first fan assembly 5 and the second fan assembly 6 are arranged opposite each other along the second direction. The first heat exchange zone 1 is provided with a first air inlet A11 and a first air inlet B12 opposite to each other in the second direction, and the second heat exchange zone 2 is provided with a second air inlet A21 and a second air inlet B22 opposite to each other in the second direction. The first fan assembly 5 can be controlled to reciprocate along a first direction to selectively connect with the first heat exchange zone 1 through the first air inlet A11 or to selectively connect with the second heat exchange zone 2 through the second air inlet A21. The second fan assembly 6 can be controlled to reciprocate along a first direction to selectively connect with the first heat exchange zone 1 through the first air inlet B12 or to selectively connect with the second heat exchange zone 2 through the second air inlet B22.

[0028] In this embodiment of the invention, the air outlet positions of the first fan assembly 5 and the second fan assembly 6 can be changed by controlling the translation of the first fan assembly 5 and the second fan assembly 6, without changing the original positions of the first heat exchanger 3 and the second heat exchanger 4. That is, in this embodiment of the invention, the cabinet air conditioner can add a fresh air heat exchange system to the original refrigerant circulation system by changing the air outlet positions of the first fan assembly 5 and the second fan assembly 6. When the external ambient temperature changes, the system can switch between the refrigerant heat exchange system and the fresh air heat exchange system simply by changing the air outlet positions of the first fan assembly 5 and the second fan assembly 6. When the cabinet air conditioner is adjusted to a fresh air heat exchange system due to the position change of the first fan assembly 5 and the second fan assembly 6, the compressor can be turned off, and the cabinet can be cooled by the outside cold air, thereby reducing energy consumption.

[0029] Specifically, the heat exchange working air duct of the fluorine-cooled heat exchange system is as follows: Figure 3 As shown, the first heat exchange zone 1 and the second heat exchange zone are separated by a side partition. The condenser end is connected to the external environment, enabling heat exchange with the external environment; the inner side is the evaporator end, enabling heat exchange with the internal environment of the cabinet. The second fan assembly 6 draws air during the refrigerant cooling stage. The air outlet of the second fan assembly 6 is connected to the second heat exchange zone 2. The second fan assembly 6 delivers air into the second heat exchange zone 2 through the second air inlet B22, where it is cooled by the condenser. Simultaneously, the air outlet of the first fan assembly 5 is connected to the first heat exchange zone 1. The first fan assembly 5 delivers air into the first heat exchange zone 1 through the first air inlet A11, where it is cooled by the evaporator.

[0030] More specifically, the working air duct of the fresh air heat exchange system, such as Figure 4 As shown, the second fan assembly 6 is moved to the inside of the unit so that its air outlet connects with the first heat exchange area 1, and the first fan assembly 5 is moved to the outside of the unit so that its air outlet connects with the second heat exchange area 2, thereby forming a new air duct structure. At this time, the compressor is in the off state, and both the first heat exchanger 3 and the second heat exchanger 4 are in the stopped working state. The second fan assembly 6 draws air into the external environment and sends the cold air from the external environment into the first heat exchange area 1 through the first air inlet B to dissipate heat from the first heat exchange area 1. At the same time, the air outlet of the first fan assembly 5 connects with the second heat exchange area 2, draws air into the environment inside the cabinet and dissipates heat to the external environment through the second air inlet A21.

[0031] In any of the above embodiments, the air outlets of the first fan assembly 5 and the second fan assembly 6 are both positioned directly opposite the air inlet side of the heat exchange zone. The rack air conditioner also includes a first driving component and a second driving component, wherein the first driving component and the second driving component can be any power source or power component that can drive the fan assembly to move, such as a motor, electric actuator, etc. The output end of the first drive unit is connected to the first fan assembly 5 and can drive the first fan assembly 5 to reciprocate along the first direction so that the air outlet of the first fan assembly 5 is connected to the first heat exchange area 1 or to the second heat exchange area 2. Specifically, the output end of the first drive unit is connected to the first fan mounting base. The output end of the second drive unit is connected to the second fan assembly 6 and can drive the second fan assembly 6 to reciprocate along the first direction so that the air outlet of the second fan assembly 6 is connected to the first heat exchange area 1 or the second heat exchange area 2. Specifically, the output end of the second drive unit is connected to the second fan mounting base.

[0032] In this embodiment of the invention, by setting the air outlets of both the first fan assembly 5 and the second fan assembly 6 to face the air inlets of the heat exchange zone, the airflow from the fan assemblies (first fan assembly 5 and second fan assembly 6) to the heat exchange zone (first heat exchange area 1 and second heat exchange area 2) can be directly delivered into the heat exchange zone, avoiding the loss of cold air and improving the heat exchange and heat dissipation effect of the cabinet air conditioner.

[0033] In any of the above embodiments, such as Figures 3-7 As shown, the first fan assembly 5 includes a first fan, a first fan mounting base and a first fan guide rail. The first fan is mounted on the first fan mounting base, the first fan mounting base is slidably disposed on the first fan guide rail, and the first fan guide rail is disposed through the first heat exchange zone 1 and the second heat exchange zone 2 along a first direction. The second fan assembly 6 includes a second fan 61, a second fan mounting base 62, and a second fan guide rail 63. The second fan 61 is mounted on the second fan mounting base 62, and the second fan mounting base 62 is slidably disposed on the second fan guide rail 63. The second fan guide rail 63 is disposed along a first direction, passing through the first heat exchange zone 1 and the second heat exchange zone 2.

[0034] In this embodiment of the invention, the fans (first fan and second fan) are slidably mounted on the fan guide rails (first fan guide rail and second fan guide rail) via fan mounting bases (first fan mounting base and second fan mounting base), which can improve the stability of the fans when they move.

[0035] It is worth noting that the first fan assembly 5 and the second fan assembly 6 in the embodiments of the present invention have the same specific composition and structure. Therefore, the specific structure of the first fan assembly 5 is not marked in the accompanying drawings of the embodiments of the present invention, but only the specific structure of the second fan assembly 6 is marked and described.

[0036] In any of the above embodiments, such as Figures 3-6 As shown, to ensure that the air ducts where the first fan assembly 5 and the second fan assembly 6 are located are independent of each other and to prevent airflow in the two air ducts from affecting heat exchange and heat dissipation, the cabinet air conditioner in this embodiment of the invention also includes a first on / off assembly and a second on / off assembly arranged opposite to each other along a second direction, wherein; The first on / off component can be driven to reciprocate along a first direction to open the first air inlet A11 or the second air inlet A21; The second on / off component can be driven to reciprocate along the second direction to open the first air inlet B12 or the second air inlet B22; The first heat exchange zone 1 and the second heat exchange zone 2 are isolated by controlling the connection status between the first on / off component, the second on / off component and the first air inlet A11, the second air inlet A21, the first air inlet B12 and the second air inlet B22.

[0037] Specifically, such as Figure 3 As shown, when the first fan assembly 5 is connected to the first heat exchange zone 1 through the first air inlet A11 and the second fan assembly 6 is connected through the second air inlet B22, the first on / off component is controlled to close the second air inlet A21 and the second on / off component is controlled to close the first air inlet B12. This isolates the first heat exchange zone 1 and the second heat exchange zone 2.

[0038] More specifically, such as Figure 4 As shown, when the first fan assembly 5 is connected to the second heat exchange zone 2 through the second air inlet A21, and the second fan assembly 6 is connected to the first heat exchange zone 1 through the first air inlet B12, the first on / off component is controlled to close the first air inlet A11, and the second on / off component is controlled to close the second air inlet B22. This isolates the first heat exchange zone from the second heat exchange zone.

[0039] In any of the above embodiments, such as Figure 5 and Figure 6 As shown, the cabinet air conditioner includes a casing, a first on / off assembly located at the top of the casing, and a second on / off assembly located at the bottom of the casing. The first switching assembly includes a first baffle, a first guide rail, and a first electric motor. The first baffle is fixedly connected to the first guide rail, the output end of the first electric motor is connected to the first guide rail, and the first guide rail is connected to the top of the housing. The second on / off assembly includes a second baffle 7, a second guide rail 8, and a second electric motor 9. The second baffle 7 is fixedly connected to the second guide rail 8, and the output end of the second electric motor 9 is connected to the second guide rail 8. The second guide rail is connected to the bottom of the housing.

[0040] It should be noted that the first switching component and the second switching component described above have the same specific structure. Therefore, the specific structure of the first switching component is not marked in the accompanying drawings of the embodiments of the present invention, but only the specific structure of the second switching component is marked.

[0041] It should also be noted that, in some alternative embodiments, the first electric motor described above can be replaced by any power source or power assembly that can move the baffles (first baffle and second baffle), such as a motor or electric push rod.

[0042] In any of the above embodiments, such as Figure 3 As shown, a first baffle plate 521 is provided on the side of the first fan mounting base facing the external environment of the cabinet, and a second baffle plate 621 is provided on the side of the second fan mounting base facing the internal environment of the cabinet. A first channel 16 is provided near the top of the casing and a second channel 17 is provided near the bottom of the casing between the first heat exchange zone 1 and the second heat exchange zone 2, wherein; When the first fan is connected to the first heat exchange zone 1, the first baffle plate 521 blocks the first channel 16. When the first fan is running, water outside the cabinet cannot flow into the cabinet through the first channel 16. When the second fan is connected to the second heat exchange zone 2, the second baffle plate 621 blocks the second channel 17. When the second fan is running, water outside the cabinet cannot flow into the cabinet through the second channel 17.

[0043] In any of the above embodiments, such as Figures 1-4 As shown, in order to prevent the fan assembly from bringing water from outside the cabinet into the cabinet during operation, the cabinet air conditioner in this embodiment of the invention also includes a first water-proof zone 10 and a second water-proof zone 110 arranged opposite to each other along the second direction, wherein the first water-proof zone 10 and the second water-proof zone 110 both penetrate the first heat exchange area 1 and the second heat exchange area 2. Specifically, the first channel 16 is located between the first water-proof zone 10 and the heat exchange zone. The first fan can be driven to move through the first channel 16 so that the air outlet of the first fan is connected to the first heat exchange zone 1 or to the second heat exchange zone 2. Figure 3 The first fan in the process is connected to the first heat exchange zone 1 through the first channel 16. Figure 4 The first fan in the middle is connected to the second heat exchange area through the first channel 16. Specifically, the second channel 17 is located between the second water-proof zone 110 and the heat exchange zone. The second fan can be driven to move through the second channel 17 so that the air outlet of the second fan is connected to the first heat exchange zone 1 or the second heat exchange zone 2. Figure 3 The second fan in the middle passes through the second channel 17 and is connected to the second heat exchange area. Figure 4The second fan in the middle passes through the second channel 17 and is connected to the first heat exchange zone 1). More specifically, the first fan guide rail is located in the first water-proof zone 10, and the first fan can slide along the first fan guide rail through the first fan mounting base; the second fan guide rail is located in the second water-proof zone 110, and the second fan can slide along the second fan guide rail through the second fan mounting base. When the air outlet of the first fan is connected to the first heat exchange area 1, the first channel 16 is blocked; when the air outlet of the second fan is connected to the second heat exchange area 2, the second channel 17 is blocked.

[0044] In this embodiment of the invention, by setting the first water-proof zone 10 and the second water-proof zone 110, the fan guide rails of the fan (first fan guide rail and second fan guide rail) can be placed in the water-proof zone (first water-proof zone and second water-proof zone), which can eliminate the gap between the fan and the casing (since the guide rail will inevitably have a gap with the casing after installation, in order to prevent external water from flowing into the cabinet through the gap, the water-proof zone is set to place the fan guide rail in the water-proof zone), thereby preventing external water from flowing into the cabinet through the gap between the two when the fan is running.

[0045] In this embodiment of the invention, on the one hand, by setting up water-proof zones (first water-proof zone and second water-proof zone), water from outside the cabinet is prevented from flowing into the cabinet through the gap at the fan track. On the other hand, by setting up wind baffles (first wind baffle 521 and second wind baffle 621) on the fan mounting base (first fan mounting base and second fan mounting base), water from outside the cabinet can be further prevented from flowing into the cabinet through the channels (first channel 16 and second channel 17).

[0046] In any of the above embodiments, such as Figures 3-7 As shown, the first water-proof zone 10 is located at the top of the casing, and the second water-proof zone 110 is located at the bottom of the casing. Specifically, the first waterproof zone 10 is formed by the first waterproof outer shell located at the top of the housing and the housing itself, and the second waterproof zone 110 is formed by the second waterproof outer shell 111 located at the bottom of the housing and the housing itself. The first waterproof outer shell is provided with a first clearance groove that penetrates the first heat exchange area 1 and the second heat exchange area 2. A part of the first fan mounting base is slidably mounted on the first guide rail through the first clearance groove, and the other part is attached to the surface of the first waterproof outer shell. This ensures that the first fan can slide along the first clearance groove on the first waterproof outer shell, and also ensures that the gap between the first fan mounting base and the first waterproof outer shell is small. (It is worth noting that the attachment of the first fan mounting base to the surface of the first waterproof outer shell in this embodiment does not require a complete attachment. In order to ensure the smoothness of the first fan mounting base when sliding, a small distance can be made between the two. Preferably, a distance of 1mm-3mm is left between the first fan mounting base and the outer surface of the first waterproof outer shell.) The second waterproof outer shell 111 is provided with a second clearance groove 1111 that penetrates the first heat exchange area 1 and the second heat exchange area 2. The second fan mounting base 62 is partially slidably mounted on the second fan guide rail 63 through the second clearance groove 1111, and the other part is in contact with the surface of the second waterproof outer shell. This ensures that the second fan can slide along the second clearance groove on the second waterproof outer shell, and also ensures that the gap between the second fan mounting base and the second waterproof outer shell is small. (It is worth noting that the contact between the second fan mounting base and the surface of the second waterproof outer shell in this embodiment does not require a complete contact. In order to ensure the smoothness of the second fan mounting base when sliding, there can be a small distance between the two. Preferably, there is a distance of 1mm-3mm between the second fan mounting base and the outer surface of the second waterproof outer shell.) More specifically, the bottom of the aforementioned casing is also provided with a drain hole 13, which is located in the second heat exchange area 2 and connected to the second water-proof area 110.

[0047] When there is water outside the cabinet, the water can enter the second waterproof zone 110 through the second clearance groove on the second waterproof shell, and then be discharged through the drain hole connected to the second waterproof zone.

[0048] In this embodiment of the invention, a second waterproof outer shell is provided at the bottom of the housing to form a second waterproof zone. On the one hand, this can prevent water from outside the cabinet from flowing into the cabinet through the gap at the fan guide rail. On the other hand, the relief groove and drainage hole connected to the second waterproof zone can also collect and discharge water. Furthermore, the second waterproof outer shell can also prevent the fan from sucking water from the second waterproof outer shell into the cabinet's internal environment during operation.

[0049] It should be noted that the opening width of the first and second clearance grooves provided on the waterproof outer shell in this embodiment of the invention is relatively small. Preferably, the groove width of the first and second clearance grooves is between 1mm and 3mm. At the same time, since the second fan and the second clearance groove are positioned opposite each other, the second fan will block the second clearance groove opposite to it. Therefore, when the second fan is running, it will not carry water out of the second waterproof area, thereby preventing water from the outside of the cabinet from flowing into the inside of the cabinet.

[0050] In other words, the water-proof shell (first water-proof shell and second water-proof shell) in the embodiments of the present invention serves to prevent water from the external environment from entering the internal environment when the fan mounting base needs to move between the inside and outside of the heat exchange zone. When there is a small amount of water on the outside, it can enter the water-proof zone through the clearance groove on the shell (so that the fan mounting base can smoothly connect to the electric slide rail inside the shell for movement).

[0051] In any of the above embodiments, such as Figure 1 , Figure 2 and Figure 7 As shown, the cabinet air conditioner also includes a control area isolated from the heat exchange area, and the control area is equipped with a compressor 14 and a control box 15; The first heat exchanger 3 is an evaporator located in the heat exchange zone, and the second heat exchanger 4 is a condenser located in the heat exchange zone.

[0052] Specifically, in this embodiment of the invention, the heat exchange zone and the insulation zone are divided into two independent areas by a partition plate, thereby ensuring that the heat exchange zone and the control zone do not affect each other.

[0053] In any of the above embodiments, the rack air conditioner has at least the following operating modes: In the refrigerant cooling system heat exchange working mode, when the cabinet air conditioner is in the refrigerant cooling system heat exchange working mode, the air outlet of the first fan assembly 5 is connected to the first heat exchange area 1, and the air outlet of the second fan assembly 6 is connected to the second heat exchange area 2. In the fresh air system heat exchange working mode, when the cabinet air conditioner is in the fresh air system heat exchange working mode, the air outlet of the first fan assembly 5 is connected to the second heat exchange area 2, and the air outlet of the second fan assembly 6 is connected to the first heat exchange area 1.

[0054] In any of the above embodiments, the cabinet air conditioner further includes: Temperature sensor, used to detect the ambient temperature outside the cabinet; Humidity sensor, used to detect the humidity of the external environment of the cabinet; The controller selects whether to activate the refrigerant cooling system's heat exchange mode or the fresh air system's heat exchange mode based on the external ambient temperature and humidity.

[0055] On the other hand, such as Figure 8 As shown, this invention also provides a heat exchange method for a rack-mounted air conditioner, applied to the aforementioned rack-mounted air conditioner, wherein the heat exchange method includes: When the rack air conditioner is powered on, it acquires the external ambient temperature and humidity, and determines whether to activate the refrigerant cooling system heat exchange mode or the fresh air system heat exchange mode based on the external ambient temperature and humidity.

[0056] In any of the above embodiments, the method for determining whether to activate the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature and humidity includes: Compare the external ambient humidity value x1 with the preset humidity value x; If x1≥X (i.e., the outside of the cabinet is in a rainy state or the outside of the cabinet is in a dry state), the refrigerant cooling system heat exchange mode should be turned on. The fresh air system heat exchange mode should not be turned on at this time to avoid rain or moisture from entering the cabinet and damaging the internal components. If x1 < X (i.e., the outside of the cabinet is not raining or is dry), the outside is dry or waterless. The system can then be further judged to start the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the ambient temperature t1.

[0057] In any of the above embodiments, the method for determining whether to activate the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature value t1 includes: Calculate the difference T1 between the external ambient temperature t1 and the preset ambient temperature t, and compare the difference T1 with the preset difference T. Based on the comparison result, determine whether to start the heat exchange working mode of the fluorinated cooling system or the heat exchange working mode of the fresh air system. If T1≤T, the refrigerant cooling system heat exchange mode is activated; if T1>T, the fresh air system heat exchange mode is activated. In the fresh air system heat exchange mode, the compressor, the first heat exchanger, and the second heat exchanger are turned off.

[0058] In any of the above embodiments, during the operation of the cabinet air conditioner, the temperature and humidity of the external environment of the cabinet are continuously monitored, and the heat exchange working mode of the refrigerant cooling system and the heat exchange working mode of the fresh air system are adaptively switched according to the changes in temperature and humidity.

[0059] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0060] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0061] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0062] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A cabinet air conditioner characterized by comprising: include: The heat exchange zone includes a first heat exchange zone (1) and a second heat exchange zone (2) that are isolated from each other. The heat exchanger includes a first heat exchanger (3) and a second heat exchanger (4). The first heat exchange area (1) is connected to the internal environment of the cabinet and the first heat exchanger (3) is provided in the first heat exchange area (1); the second heat exchange area (2) is connected to the external environment of the cabinet and the second heat exchanger (4) is provided in the second heat exchange area (2). The first fan assembly (5) and the second fan assembly (6) are connected to the internal environment of the cabinet at the air inlet end and can be connected to the first heat exchange area (1) or the second heat exchange area (2) at the air outlet end. The second fan assembly (6) is connected to the external environment of the cabinet at the air inlet end and can be connected to the first heat exchange area (1) or the second heat exchange area (2) at the air outlet end. The first heat exchanger (3) and the second heat exchanger (4) are arranged opposite each other along a first direction, and the first fan assembly (5) and the second fan assembly (6) are arranged opposite each other along a second direction; The first heat exchange zone (1) is provided with a first air inlet A (11) and a first air inlet B (12) opposite each other in the second direction, and the second heat exchange zone (2) is provided with a second air inlet A (21) and a second air inlet B (22) opposite each other in the second direction. The first fan assembly (5) can be controlled to reciprocate along the first direction to selectively connect with the first heat exchange area (1) through the first air inlet A (11) or selectively connect with the second heat exchange area (2) through the second air inlet A (21); The second fan assembly (6) can be controlled to reciprocate along the first direction to either connect with the first heat exchange area (1) through the first air inlet B (12) or connect with the second heat exchange area (2) through the second air inlet B (22).

2. The cabinet air conditioner according to claim 1, wherein The air outlets of the first fan assembly (5) and the second fan assembly (6) are both positioned directly opposite the air inlet of the heat exchange zone. The cabinet air conditioner also includes a first driving component and a second driving component; The output end of the first drive unit is connected to the first fan assembly (5) and can drive the first fan assembly (5) to move back and forth along the first direction so that the air outlet of the first fan assembly (5) is connected to the first heat exchange area (1) or to the second heat exchange area (2). The output end of the second drive unit is connected to the second fan assembly (6) and can drive the second fan assembly (6) to reciprocate along the first direction so that the air outlet of the second fan assembly (6) is connected to the first heat exchange area (1) or to the second heat exchange area (2).

3. The cabinet air conditioner according to claim 2, characterized in that, The first fan assembly (5) includes a first fan, a first fan mounting base and a first fan guide rail. The first fan is mounted on the first fan mounting base, the first fan mounting base is slidably disposed on the first fan guide rail, and the first fan guide rail is disposed through the first heat exchange area (1) and the second heat exchange area (2) along the first direction. The output end of the first drive unit is connected to the first fan mounting base. The second fan assembly (6) includes a second fan (61), a second fan mounting base (62), and a second fan guide rail (63). The second fan (61) is mounted on the second fan mounting base (62), and the second fan mounting base (62) is slidably disposed on the second fan guide rail (63). The second fan guide rail (63) is disposed along the first direction, passing through the first heat exchange area (1) and the second heat exchange area (2). The output end of the second drive unit is connected to the second fan mounting base.

4. The rack-mounted air conditioner according to any one of claims 1-3, characterized in that, The cabinet air conditioner also includes a first on / off component and a second on / off component arranged opposite to each other along the second direction. The first on / off component can be driven to reciprocate along the first direction to open the first air inlet A (11) or the second air inlet A (21). The second on / off component can be driven to reciprocate along the second direction to open the first air inlet B (12) or the second air inlet B (22); By controlling the connection state between the first on / off component, the second on / off component and the first air inlet A (11), the second air inlet A (21), the first air inlet B (12) and the second air inlet B (22), the first heat exchange area (1) and the second heat exchange area (2) are isolated.

5. The cabinet air conditioner according to claim 4, characterized in that, The cabinet air conditioner includes a casing, with the first on / off component located at the top of the casing and the second on / off component located at the bottom of the casing; The first switching component includes a first baffle, a first guide rail, and a first electric motor. The first baffle is fixedly connected to the first guide rail, the output end of the first electric motor is connected to the first guide rail, and the first guide rail is connected to the top of the housing. The second switching component includes a second baffle (7), a second guide rail (8), and a second electric motor (9). The second baffle (7) is fixedly connected to the second guide rail (8), and the output end of the second electric motor (9) is connected to the second guide rail (8). The second guide rail is connected to the bottom of the housing.

6. The cabinet air conditioner according to claim 5, characterized in that, The first fan mounting base is provided with a first wind deflector (521) on the side facing the external environment of the cabinet, and the second fan mounting base is provided with a second wind deflector (621) on the side facing the internal environment of the cabinet. A first channel (16) is provided near the top of the housing and a second channel (17) is provided near the bottom of the housing between the first heat exchange area (1) and the second heat exchange area (2); When the first fan is connected to the first heat exchange area (1), the first baffle plate (521) blocks the first channel (16). When the second fan is connected to the second heat exchange area (2), the second baffle plate (621) blocks the second channel (17).

7. The cabinet air conditioner according to claim 6, characterized in that, The cabinet air conditioner also includes a first water-proof zone (10) and a second water-proof zone (110) arranged opposite to each other along the second direction. The first water-proof zone (10) and the second water-proof zone (110) both penetrate the first heat exchange area (1) and the second heat exchange area (2). The first channel (16) is located between the first water-proof zone (10) and the heat exchange zone. The first fan can be driven to move through the first channel (16) so that the air outlet of the first fan is connected to the first heat exchange zone (1) or to the second heat exchange zone (2). The second channel (17) is located between the second water-proof zone (110) and the heat exchange zone. The second fan can be driven to move through the second channel (17) so that the air outlet of the second fan is connected to the first heat exchange zone (1) or the second heat exchange zone (2). The first fan guide rail is located in the first water-proof zone (10), and the first fan can slide along the first fan guide rail through the first fan mounting seat. The second fan guide rail is located in the second water-proof zone (110), and the second fan can slide along the second fan guide rail through the second fan mounting seat.

8. The cabinet air conditioner according to claim 7, characterized in that, The first waterproof zone (10) is located at the top of the housing, and the second waterproof zone (110) is located at the bottom of the housing; The first waterproof zone (10) is formed by the first waterproof outer shell located at the top of the housing and the housing itself, and the second waterproof zone (110) is formed by the second waterproof outer shell (111) located at the bottom of the housing and the housing itself. The first waterproof outer shell is provided with a first clearance groove that penetrates the first heat exchange area (1) and the second heat exchange area (2). Part of the first fan mounting base is slidably mounted on the first guide rail through the first clearance groove, and the other part is attached to the surface of the first waterproof outer shell. The second waterproof housing (111) is provided with a second clearance groove (1111) that penetrates the first heat exchange area (1) and the second heat exchange area (2). A part of the second fan mounting base (62) is slidably mounted on the second fan guide rail (63) through the second clearance groove (1111), and the other part is attached to the surface of the second waterproof housing. The bottom of the casing is provided with a drain hole (13), which is located in the second heat exchange area (2) and connected to the second water-proof area (110).

9. The cabinet air conditioner according to claim 1, characterized in that, The cabinet air conditioner also includes a control area isolated from the heat exchange area, and the control area is equipped with a compressor (14) and a control box (15). The first heat exchanger (3) is an evaporator located in the heat exchange zone, and the second heat exchanger (4) is a condenser located in the heat exchange zone.

10. The cabinet air conditioner according to claim 1 or 9, characterized in that, The rack air conditioner has at least the following operating modes: In the heat exchange working mode of the fluorine cooling system, the air outlet of the first fan assembly (5) is connected to the first heat exchange area (1), and the air outlet of the second fan assembly (6) is connected to the second heat exchange area (2). In the heat exchange working mode of the fresh air system, the air outlet of the first fan assembly (5) is connected to the second heat exchange area (2), and the air outlet of the second fan assembly (6) is connected to the first heat exchange area (1).

11. The rack-mounted air conditioner according to claim 10, characterized in that, The cabinet air conditioner also includes: A temperature sensor, used to detect the ambient temperature outside the cabinet; A humidity sensor, used to detect the humidity of the external environment of the cabinet; The controller selects to activate either the refrigerant cooling system heat exchange mode or the fresh air system heat exchange mode based on the external ambient temperature and humidity.

12. A heat exchange method for a rack-mounted air conditioner, applied to the rack-mounted air conditioner according to any one of claims 10-11, characterized in that, The heat exchange method includes: When the rack air conditioner is powered on, it acquires the external ambient temperature and humidity, and determines whether to activate the refrigerant cooling system heat exchange mode or the fresh air system heat exchange mode based on the external ambient temperature and humidity.

13. The heat exchange method according to claim 12, characterized in that, The method for determining whether to activate the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature and humidity includes: Compare the external ambient humidity value x1 with the preset humidity value x; If x1≥X, the heat exchange working mode of the fluorine cooling system is activated; If x1 < X, determine whether to start the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature value t1.

14. The heat exchange method according to claim 13, characterized in that, Methods for determining whether to activate the heat exchange mode of the refrigerant cooling system or the heat exchange mode of the fresh air system based on the external ambient temperature value t1 include: Calculate the difference T1 between the external ambient temperature t1 and the preset ambient temperature t, and compare the difference T1 with the preset difference T. Based on the comparison result, determine whether to start the heat exchange working mode of the fluorinated cooling system or the heat exchange working mode of the fresh air system. If T1≤T, the refrigerant cooling system heat exchange mode is activated; if T1>T, the fresh air system heat exchange mode is activated. In the fresh air system heat exchange mode, the compressor, the first heat exchanger, and the second heat exchanger are turned off.

15. The heat exchange method according to any one of claims 12-14, characterized in that, During the operation of the cabinet air conditioner, the temperature and humidity of the external environment of the cabinet are continuously monitored, and the heat exchange working mode of the refrigerant cooling system and the heat exchange working mode of the fresh air system are adaptively switched according to the changes in temperature and humidity.

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