Air conditioner power supply system of air-cooled precise air conditioner and air-cooled precise air conditioner

Abstract

The invention provides an air conditioner power supply system of an air-cooled precise air conditioner and the air-cooled precise air conditioner, and relates to the technical field of refrigeration of data centers. The air conditioner power supply system of the air-cooled precise air conditioner comprises a main direct-current power supply branch and a main direct-current power source, and the main direct-current power source is used for providing main direct current for the main direct-current power supply branch; the main direct-current power supply branch comprises a first direct-current power supply branch and a second direct-current power supply branch; the first direct current power supply sub-branch is used for supplying power to a frequency converter, a compressor and an indoor fan in an indoor unit of the air-cooled precise air conditioner and an outdoor fan in an outdoor unit of the air-cooled precise air conditioner by using main direct current; and the second direct current power supply sub-branch comprises a first switching power supply module, and the first switching power supply module is used for converting the main direct current into 24V direct current, so that the second direct current power supply sub-branch uses the 24V direct current to supply power to an indoor unit controller in the indoor unit and an outdoor unit controller in the outdoor unit.

Description

Technical Field

[0001] The present disclosure relates to the technical field of data centers, and in particular to the technical field of refrigeration of data centers, and specifically to an air-conditioning power supply system of an air-cooled precision air conditioner and an air-cooled precision air conditioner. Background Art

[0002] In the prior art, the air-cooling precision air conditioner power supply system serving the data center usually uses two AC lines to power the air-cooling precision air conditioner. When two AC lines are used to power the air-cooling precision air conditioner, there are problems such as incompatibility with data centers powered by DC power and the air-cooling precision air conditioner will shut down when switching power. Summary of the invention

[0003] According to a first aspect of the present disclosure, an air-conditioning power supply system for an air-cooled precision air conditioner is provided, and the air-cooled precision air conditioner is used to control the temperature and humidity of a data center; wherein the air-conditioning power supply system includes a main DC power supply branch and a main DC power supply, and the main DC power supply is used to provide main DC power to the main DC power supply branch, and the main DC power supply branch uses the main DC power to power the air-cooled precision air conditioner; the main DC power supply branch includes a first DC power supply sub-branch and a second DC power supply sub-branch; the first DC power supply sub-branch is used to use the main DC power to power the inverter, compressor and indoor fan in the indoor unit of the air-cooled precision air conditioner, and the outdoor fan in the outdoor unit of the air-cooled precision air conditioner; the second DC power supply sub-branch includes a first switching power supply module, and the first switching power supply module is used to convert the main DC power into 24V DC power, so that the second DC power supply sub-branch uses the 24V DC power to power the indoor unit controller in the indoor unit, and the outdoor unit controller in the outdoor unit.

[0004] According to a second aspect of the present disclosure, there is provided an air-cooled precision air conditioner, comprising an indoor unit, an outdoor unit and the air conditioner power supply system provided in the above embodiment.

[0005] According to a third aspect of the present disclosure, a data center is provided, including a data center computer room and the air-cooled precision air conditioner provided by the above-mentioned embodiment, wherein the air-cooled precision air conditioner is used to control the temperature and humidity of the data center computer room.

[0006] According to a fourth aspect of the present disclosure, a data center power supply system is provided, including a data center computer room power supply system and the air conditioning power supply system provided by the above embodiment, wherein the data center computer room power supply system is used to provide direct current power supply to the data center computer room.

[0007] The present invention realizes the purpose of providing DC power to the main electrical components (such as inverter, compressor, indoor fan, outdoor fan, indoor controller, outdoor controller, etc.) in the air-cooled precision air conditioner through the main DC power supply in the air-conditioning power supply system, and the first DC power supply sub-branch and the second DC power supply sub-branch included in the main DC power supply branch, so that the air-cooled precision air conditioner can support DC power supply, thereby improving the power compatibility between the air-cooled precision air conditioner serving the data center and the data center.

[0008] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0010] Figure 1 is a schematic diagram according to a first embodiment of the present disclosure;

[0011] Figure 2 is a schematic diagram according to a second embodiment of the present disclosure;

[0012] Figure 3 is a schematic diagram according to a third embodiment of the present disclosure. DETAILED DESCRIPTION

[0013] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, the description of well-known functions and mechanisms is omitted in the following description.

[0014] Figure 1 Schematic diagram of the first embodiment of the present disclosure. Figure 1 As shown in , this embodiment shows a structural schematic diagram of an air-conditioning power supply system of an air-cooled precision air conditioner.

[0015] In this embodiment, air-cooled precision air conditioners are used to control the temperature and humidity of the computer room, battery room, transformer substation, etc. of the data center. Compared with traditional air conditioners, air-cooled precision air conditioners can provide higher-precision temperature and humidity control, and have higher reliability, energy efficiency ratio and longer service life, thereby ensuring that the data center can operate long-term and stably under optimal conditions.

[0016] In this embodiment, the air-cooled precision air conditioner serving the data center is powered by an air-conditioning power supply system; wherein, the air-conditioning power supply system in this embodiment is used to provide DC power to the air-cooled precision air conditioner.

[0017] In this embodiment, the data center power supply system includes a data center computer room power supply system and an air conditioning power supply system. The data center computer room power supply system is used to provide direct current power supply to the data center computer room.

[0018] Since the data center computer room power supply system provides DC power to the data center computer room, this embodiment sets up a main DC power supply branch, and the air-conditioning power supply system provides DC power to the air-cooled precision air conditioner, thereby eliminating the need to provide AC power to the air-cooled precision air conditioner, thereby achieving the purpose of making the air-conditioning power supply system compatible with the data center computer room power supply system.

[0019] In this embodiment, the air-cooled precision air conditioner consists of an indoor unit and an outdoor unit; wherein, the main electrical components in the indoor unit include a frequency converter, a compressor, an indoor fan and an indoor unit controller, and the main electrical components in the outdoor unit include an outdoor unit controller and an outdoor fan.

[0020] In this embodiment, the main electrical components in the air-cooled precision air conditioner are all DC-powered; that is, the above-mentioned main electrical components use DC power to operate.

[0021] The air conditioning power supply system in this embodiment includes a main DC power supply branch and a main DC power supply. The main DC power supply branch is connected to the main DC power supply, and the main DC power supply is used to provide main DC power to the main DC power supply branch.

[0022] The air conditioning power supply system in this embodiment uses the main DC power provided by the main DC power supply to provide DC power to the air-cooled precision air conditioner through the main DC power supply branch, so that the air-cooled precision air conditioner can support DC power supply, thereby improving the power compatibility with the data center that already supports DC power supply.

[0023] In this embodiment, the voltage of the main DC power provided by the main DC power supply can be 750V (-20%~10%), 540V (-15%~15%) or 380V (-15%~15%); specifically, this embodiment can determine the voltage of the main DC power required to be provided by the main DC power supply based on the selection of the main electrical components in the air-cooled precision air conditioner.

[0024] In this embodiment, the main DC power supply supports power supply forms such as integrated power supply and HVDC (High-Voltage Direct Current).

[0025] It can be understood that, when the main DC power supply branch and the main DC power supply operate normally, the power supply system in this embodiment will close the circuit breaker corresponding to the main DC power supply branch.

[0026] In this embodiment, the main DC power supply branch includes a first DC power supply sub-branch and a second DC power supply sub-branch.

[0027] In this embodiment, the first DC power supply electronic branch is used to use the main DC power provided by the main DC power supply to power the inverter, compressor and indoor fan in the indoor unit of the air-cooled precision air conditioner, and the outdoor fan in the outdoor unit; the indoor fan and outdoor fan in this embodiment can be EC (Electrical Commutation) fans.

[0028] In this embodiment, the second DC power supply sub-branch includes a first switching power supply module, which is used to convert the main DC power provided by the main DC power supply into 24V DC power, so that the second DC power supply sub-branch uses the converted 24V DC power to power the indoor unit controller in the indoor unit of the air-cooled precision air conditioner and the outdoor unit controller in the outdoor unit.

[0029] In this embodiment, the DC voltage supported by the indoor controller and the outdoor controller in the air-cooled precision air conditioner is 24V.

[0030] That is to say, this embodiment achieves the purpose of providing DC power to the main electrical components in the air-cooled precision air conditioner through the main DC power supply in the air-conditioning power supply system, and the first DC power supply sub-branch and the second DC power supply sub-branch included in the main DC power supply branch, so that the air-cooled precision air conditioner can support DC power supply, thereby improving the power compatibility between the air-cooled precision air conditioner serving the data center and the data center.

[0031] Figure 2 is a schematic diagram according to the second embodiment of the present disclosure. Figure 2 As shown in , this embodiment shows a structural schematic diagram of an air-conditioning power supply system of another air-cooled precision air-conditioning.

[0032] In this embodiment, air-cooled precision air conditioners are used to control the temperature and humidity of the computer room, battery room, transformer substation, etc. of the data center. Compared with traditional air conditioners, air-cooled precision air conditioners can provide higher-precision temperature and humidity control, and have higher reliability, energy efficiency ratio and longer service life, thereby ensuring that the data center can operate long-term and stably under optimal conditions.

[0033] In this embodiment, the air-cooled precision air conditioner serving the data center is powered by an air-conditioning power supply system; wherein, the air-conditioning power supply system in this embodiment is used to provide DC power to the air-cooled precision air conditioner.

[0034] In this embodiment, the data center power supply system includes a data center computer room power supply system and an air conditioning power supply system. The data center computer room power supply system is used to provide direct current power supply to the data center computer room.

[0035] Since the data center computer room power supply system provides DC power to the data center computer room, in addition to setting up a main DC power supply branch in the air-conditioning power supply system, this embodiment further provides a backup AC power supply branch. Therefore, when the main DC power supply branch is unable to provide power, the backup AC power supply branch converts the AC power into DC power to provide DC power to the air-cooled precision air conditioner, thereby eliminating the need to provide AC power to the air-cooled precision air conditioner, thereby achieving the purpose of making the air-conditioning power supply system compatible with the data center computer room power supply system.

[0036] In this embodiment, the air-cooled precision air conditioner consists of an indoor unit and an outdoor unit; wherein, the main electrical components in the indoor unit include a frequency converter, a compressor, an indoor fan and an indoor unit controller, and the main electrical components in the outdoor unit include an outdoor unit controller and an outdoor fan; the indoor fan and outdoor fan in this embodiment can be EC (Electrical Commutation) fans.

[0037] In this embodiment, the main electrical components in the air-cooled precision air conditioner are all DC-powered; that is, the above-mentioned main electrical components use DC power to operate.

[0038] In the air conditioning power supply system of this embodiment, in addition to the main DC power supply branch (including the first DC power supply branch and the second DC power supply branch) and the main DC power supply, it also includes a backup AC power supply branch and a backup AC power supply.

[0039] In this embodiment, the backup AC power supply branch is connected to a backup AC power source, and the backup AC power source is used to provide backup AC power to the backup AC power supply branch.

[0040] The air conditioning power supply system in this embodiment, when it is determined that the main DC power supply branch or the main DC power supply has failed, will switch the power supply branch that supplies power to the air-cooled precision air conditioner from the main DC power supply branch to the backup AC power supply branch, and then use the backup AC power provided by the backup AC power supply through the backup AC power supply branch to provide DC power to the air-cooled precision air conditioner.

[0041] It can be understood that when the main DC power supply branch and the main DC power supply are operating normally, the air-conditioning power supply system in this embodiment will close the circuit breaker corresponding to the main DC power supply branch and disconnect the contactor and circuit breaker corresponding to the backup AC power supply branch; when the main DC power supply branch or the main DC power supply fails, the circuit breaker corresponding to the main DC power supply branch will be disconnected, and the contactor and circuit breaker corresponding to the backup AC power supply branch will be closed.

[0042] In this embodiment, the voltage of the backup AC power provided by the backup AC power supply is 380V (-15% to 15%); wherein, the backup AC power supply supports power supply forms such as direct AC power supply or UPS (Uninterruptible Power Supply).

[0043] In this embodiment, the backup AC power supply branch includes a first AC power supply sub-branch and a second AC power supply sub-branch.

[0044] In this embodiment, the first AC power supply sub-branch includes a rectifier module, which is used to convert the backup AC power provided by the backup AC power supply into a first backup DC power, so that the first AC power supply sub-branch uses the converted first backup DC power to power the inverter, compressor and indoor fan in the indoor unit of the air-cooled precision air conditioner, and the outdoor fan in the outdoor unit.

[0045] In this embodiment, the voltage of the first standby DC power used by the first AC power supply sub-branch is the same as the voltage of the main DC power provided by the main DC power supply.

[0046] In this embodiment, the second AC power supply sub-branch includes a second switching power supply module, which is used to convert the backup AC power provided by the backup AC power supply into 24V DC power, so that the second AC power supply sub-branch uses the converted 24V DC power to power the indoor unit controller in the indoor unit of the air-cooled precision air conditioner and the outdoor unit controller in the outdoor unit.

[0047] In order to ensure that there is no interruption in the power supply to the indoor controller and the outdoor controller of the air-cooled precision air conditioner when the power supply is switched, the air conditioner power supply system of this embodiment also includes a first redundancy module.

[0048] In this embodiment, when the first redundant module detects a failure in the main DC power supply, it can quickly switch to the backup AC power supply (or quickly switch to the second AC power supply sub-branch) to ensure that the power supply to the indoor controller and the outdoor controller in the air-cooled precision air conditioner will not be affected by the power switching.

[0049] In this embodiment, the first redundant module is connected to the first switching power supply module and the second switching power supply module, and is used to provide the 24V DC power converted by the second AC power supply sub-branch or the 24V DC power converted by the second DC power supply sub-branch to the indoor controller and the outdoor controller of the air-cooled precision air conditioner.

[0050] That is to say, on the one hand, this embodiment realizes the purpose of dual-path DC power supply to the main electrical components in the air-cooled precision air conditioner through the main DC power supply and the main DC power supply branch, and the backup AC power supply and the backup AC power supply branch in the air-conditioning power supply system, and in the event of a failure in the main DC power supply or the main DC power supply branch, the air-conditioning power supply system will perform power switching, thereby using the backup AC power provided by the backup AC power supply to provide DC power to the air-cooled precision air conditioner through the backup AC power supply branch.

[0051] On the other hand, since the power switching performed by the air-conditioning power supply system in this embodiment is to switch from DC power to AC power, there is no need to consider factors such as the phase and amplitude of the two AC power supplies before and after the switching during the switching process, thereby avoiding the problem of the prior art that the air-cooled precision air conditioner needs to be shut down during the power switching process, and ensuring the stability of the air-cooled precision air conditioner when controlling the temperature and humidity of the data center.

[0052] Figure 3 is a schematic diagram according to the third embodiment of the present disclosure. Figure 3 As shown in , this embodiment shows a structural schematic diagram of an air-conditioning power supply system of another air-cooled precision air-conditioning.

[0053] In this embodiment, air-cooled precision air conditioners are used to control the temperature and humidity of the computer room, battery room, transformer substation, etc. of the data center. Compared with traditional air conditioners, air-cooled precision air conditioners can provide higher-precision temperature and humidity control, and have higher reliability, energy efficiency ratio and longer service life, thereby ensuring that the data center can operate long-term and stably under optimal conditions.

[0054] In this embodiment, the air-cooled precision air conditioner serving the data center is powered by an air-conditioning power supply system; wherein, the air-conditioning power supply system in this embodiment is used to provide DC power to the air-cooled precision air conditioner.

[0055] In this embodiment, the data center power supply system includes a data center computer room power supply system and an air conditioning power supply system, and the data center computer room power supply system is used to provide direct current power supply to the data center computer room.

[0056] Since the data center computer room power supply system provides DC power to the data center computer room, in addition to providing a main DC power supply branch in the air-conditioning power supply system of this embodiment, a backup DC power supply branch is also provided. Therefore, when the main DC power supply branch fails to provide power, the backup DC power supply branch is used to provide DC power to the air-cooled precision air conditioner, thereby eliminating the need for AC power supply to the air-cooled precision air conditioner, thereby achieving the purpose of making the air-conditioning power supply system compatible with the data center computer room power supply system.

[0057] In this embodiment, the air-cooled precision air conditioner consists of an indoor unit and an outdoor unit; wherein, the main electrical components in the indoor unit include a frequency converter, a compressor, an indoor fan and an indoor unit controller, and the main electrical components in the outdoor unit include an outdoor unit controller and an outdoor fan; the indoor fan and outdoor fan in this embodiment can be EC (Electrical Commutation) fans.

[0058] In this embodiment, the main electrical components in the air-cooled precision air conditioner are all DC-powered; that is, the above-mentioned main electrical components use DC power to operate.

[0059] In the air conditioning power supply system of this embodiment, in addition to the main DC power supply branch (including the first DC power supply branch and the second DC power supply branch) and the main DC power supply, it also includes a backup DC power supply branch and a backup DC power supply.

[0060] In this embodiment, the standby DC power supply branch is connected to a standby DC power supply, and the standby DC power supply is used to provide standby DC power to the standby DC power supply branch.

[0061] The air conditioning power supply system in this embodiment, when it is determined that the main DC power supply branch or the main DC power supply has failed, will switch the power supply branch that supplies power to the air-cooled precision air conditioner from the main DC power supply branch to the backup DC power supply branch, and then use the backup DC power provided by the backup DC power supply to provide DC power to the air-cooled precision air conditioner through the backup DC power supply branch.

[0062] It can be understood that when the main DC power supply branch and the main DC power supply are operating normally, the air-conditioning power supply system in this embodiment will close the circuit breaker corresponding to the main DC power supply branch and disconnect the circuit breaker corresponding to the backup DC power supply branch; when the main DC power supply branch or the main DC power supply fails, the circuit breaker corresponding to the main DC power supply branch will be disconnected and the circuit breaker corresponding to the backup DC power supply branch will be closed.

[0063] In this embodiment, the voltage of the backup DC power provided by the backup DC power supply can be 750V (-20% to 10%), 540V (-15% to 15%) or 380V (-15% to 15%); wherein the backup DC power supply supports integrated power supply, HVDC (High-Voltage Direct Current, high-voltage DC power supply) and other power supply forms.

[0064] In this embodiment, the voltage of the backup DC power provided by the backup DC power supply is the same as the voltage of the main DC power provided by the main DC power supply.

[0065] In this embodiment, the standby DC power supply branch includes a third DC power supply sub-branch and a fourth DC power supply sub-branch.

[0066] In this embodiment, the third DC power supply sub-branch is used to use the backup DC power provided by the backup DC power supply to power the inverter, compressor and indoor fan in the indoor unit of the air-cooled precision air conditioner, and the outdoor fan in the outdoor unit.

[0067] In this embodiment, the fourth DC power supply sub-branch includes a third switching power supply module, which is used to convert the backup DC power provided by the backup DC power supply into 24V DC power, so that the fourth DC power supply sub-branch uses the converted 24V DC power to power the indoor unit controller in the indoor unit of the air-cooled precision air conditioner and the outdoor unit controller in the outdoor unit.

[0068] In order to ensure that there is no interruption in the power supply to the indoor controller and the outdoor controller of the air-cooled precision air conditioner when the power supply is switched, the air conditioner power supply system of this embodiment also includes a second redundancy module.

[0069] In this embodiment, when the second redundant module detects a failure in the main DC power supply, it can quickly switch to the backup DC power supply (or quickly switch to the fourth DC power supply sub-branch) to ensure that the power supply to the indoor controller and the outdoor controller in the air-cooled precision air conditioner will not be affected by the power switching.

[0070] In this embodiment, the second redundant module is connected to the first switching power supply module and the third switching power supply module, and is used to provide the 24V DC power converted by the second DC power supply sub-branch or the 24V DC power converted by the fourth DC power supply sub-branch to the indoor controller and the outdoor controller of the air-cooled precision air conditioner.

[0071] That is to say, on the one hand, this embodiment realizes the purpose of providing two-way DC power supply to the main electrical components in the air-cooled precision air conditioner through the main DC power supply and the main DC power supply branch, and the backup DC power supply and the backup DC power supply branch in the air-conditioning power supply system. When the main DC power supply or the main DC power supply branch fails, the air-conditioning power supply system will switch the power supply, thereby using the backup DC power provided by the backup DC power supply to provide DC power to the air-cooled precision air conditioner through the backup DC power supply branch.

[0072] On the other hand, since the air-conditioning power supply system in this embodiment switches between two DC power supplies, there is no need to consider factors such as the phase and amplitude of the two AC power supplies before and after the switching process, thereby avoiding the problem of the prior art that the air-cooled precision air conditioner needs to be shut down during the power switching process, and ensuring the stability of the air-cooled precision air conditioner when controlling the temperature and humidity of the data center.

[0073] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An air-conditioning power supply system for an air-cooled precision air conditioner, wherein the air-cooled precision air conditioner is used to control the temperature and humidity of a data center; in, The air conditioning power supply system comprises a main DC power supply branch and a main DC power supply, wherein the main DC power supply is used to provide main DC power to the main DC power supply branch, and the main DC power supply branch uses the main DC power to power the air-cooled precision air conditioner; The main DC power supply branch includes a first DC power supply sub-branch and a second DC power supply sub-branch; The first DC power supply sub-branch is used to use the main DC power to power the inverter, compressor and indoor fan in the indoor unit of the air-cooled precision air conditioner, and the outdoor fan in the outdoor unit of the air-cooled precision air conditioner; The second DC power supply sub-branch includes a first switching power supply module, which is used to convert the main DC power into 24V DC power, so that the second DC power supply sub-branch uses the 24V DC power to power the indoor unit controller in the indoor unit and the outdoor unit controller in the outdoor unit.

2. The air conditioning power supply system according to claim 1, wherein: The air conditioning power supply system further comprises a backup AC power supply and a backup AC power supply branch, wherein the backup AC power supply is used to provide backup AC power to the backup AC power supply branch; When the air-conditioning power supply system determines that the main DC power supply branch or the main DC power supply fails, the main DC power supply is switched to the backup AC power supply, and the backup AC power supply branch uses the backup AC power to power the air-cooled precision air conditioner.

3. The air conditioning power supply system according to claim 2, wherein: The standby AC power supply branch includes a first AC power supply sub-branch and a second AC power supply sub-branch; The first AC power supply sub-branch includes a rectifier module, and the rectifier module is used to convert the standby AC power into a first standby DC power, so that the first AC power supply sub-branch uses the first standby DC power to power the inverter, the compressor and the indoor fan in the indoor unit, and the outdoor fan in the outdoor unit; The second AC power supply sub-branch includes a second switching power supply module, which is used to convert the backup AC power into 24V DC power, so that the second AC power supply sub-branch uses the 24V DC power to power the indoor unit controller in the indoor unit and the outdoor unit controller in the outdoor unit. 4 . The air-conditioning power supply system according to claim 3 , further comprising a first redundancy module, wherein the first redundancy module is connected to the first switching power supply module and the second switching power supply module.

5. The air conditioning power supply system according to claim 1, wherein: The air conditioning power supply system also includes a backup DC power supply branch and a backup DC power supply, wherein the backup DC power supply is used to provide backup DC power to the backup DC power supply branch; When it is determined that the main DC power supply branch or the main DC power supply fails, the air-conditioning power supply system switches the main DC power supply to the backup DC power supply, and the backup DC power supply branch uses the backup DC power to power the air-cooled precision air conditioner.

6. The air conditioning power supply system according to claim 5, wherein: The standby DC power supply branch includes a third DC power supply sub-branch and a fourth DC power supply sub-branch; The third DC power supply sub-branch is used to use the standby DC power to power the inverter, the compressor and the indoor fan in the indoor unit, and the outdoor fan in the outdoor unit; The fourth DC power supply sub-branch includes a third switching power supply module, and the third switching power supply module is used to convert the standby DC power into 24V DC power, so that the fourth DC power supply sub-branch uses the 24V DC power to power the indoor unit controller in the indoor unit and the outdoor unit controller in the outdoor unit. 7 . The air-conditioning power supply system according to claim 6 , further comprising a second redundancy module, wherein the second redundancy module is connected to the first switch power supply module and the third switch power supply module.

8. An air-cooled precision air conditioner, comprising an indoor unit, an outdoor unit and an air conditioning power supply system according to any one of claims 1 to 7.

9. A data center, comprising a data center computer room and the air-cooled precision air conditioner according to claim 8, wherein the air-cooled precision air conditioner is used to control the temperature and humidity of the data center computer room.

10. A data center power supply system, comprising a data center computer room power supply system and the air conditioning power supply system according to any one of claims 1 to 7, wherein the data center computer room power supply system is used to provide direct current power supply to the data center computer room.

Images