Cooling Capacity Distribution Unit With Integrated Backup Power
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Solution Overview
Problem
Conventional liquid cooling systems in data centers require additional backup power systems, such as UPS and batteries, which occupy space and reduce system efficiency and increase costs due to redundant power conversion modules.
Innovation Solution
A cooling capacity distribution unit integrated with a DC-DC module and backup battery within the cabinet, providing a self-contained power supply and eliminating the need for external UPS, while optimizing the distribution of cooling capacity and reducing space and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external UPS and backup battery system are added separately to the frequency converter, then the liquid-cooled circulating pump can have backup power function, but the occupied space increases and system costs increase
Solution Approach 1:
The patent combines the backup battery and DC-DC module directly into the frequency converter cabinet, merging the power supply function with the driving function. This integration eliminates the need for separate external UPS and backup battery systems, reducing occupied space while maintaining the backup power capability for the liquid-cooled circulating pump.
Solution Approach 2:
The frequency converter cabinet is designed to serve multiple functions: it provides both the driving function (through the frequency converter) and the backup power function (through the integrated backup battery and DC-DC module). This multi-functionality eliminates the need for separate dedicated backup power equipment, reducing overall system complexity and space occupation.
2Reliability
If an external UPS and backup battery system are added separately to the frequency converter, then the liquid-cooled circulating pump can have backup power function, but system efficiency decreases due to repeated functions
Solution Approach 1:
By merging the backup power system into the frequency converter cabinet, the patent eliminates redundant power conversion stages. The DC-DC module directly converts DC power from the backup battery to the required voltage for the pump, avoiding the AC-DC-AC conversion path that would be required if using a separate external UPS system, thereby reducing energy losses.
3Ease of operation
If a frequency converter without integrated power supply is used, then the driving function is provided, but additional backup power system is needed
Solution Approach 1:
The frequency converter cabinet is designed as a multi-functional integrated unit that provides both the driving function (through the frequency converter) and the backup power function (through the integrated backup battery and DC-DC module). This eliminates the need for separate dedicated backup power equipment, reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated power supply enhances system efficiency by avoiding multi-level conversion losses, allows for higher power density, and reduces the number of cabinets needed per unit area, while simplifying maintenance and reducing the risk of water leakage.
Implementation Method 1
The power supply unit includes a backup battery disposed in the cabinet, and a DC-DC module connected to the backup battery. The DC-DC module is connected to the DC-AC module and is configured to supply power to the liquid-cooled circulating pump
Implementation Method 2
Heat of this part is dissipated by circulating heat exchange of working medium liquid
Implementation Method 3
Heat exchange is performed between an external cooling tower and the working medium liquid in the liquid-cooled cooling plate
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
This application provides a cooling capacity distribution unit and a liquid cooling system, where the cooling capacity distribution unit includes a liquid-cooled circulating pump disposed in a cabinet, and a frequency converter that supplies power to the liquid-cooled circulating pump. The frequency converter includes an AC-DC module and a DC-AC module. The AC-DC module is configured to be connected to mains, and the DC-AC module is connected to the liquid-cooled circulating pump. The cooling capacity distribution unit further includes a power supply unit, where the power supply unit includes a backup battery disposed in the cabinet, and a DC-DC module connected to the backup battery. The DC-DC module is connected to the DC-AC module and is configured to supply power to the liquid-cooled circulating pump. By using the disposed DC-DC module and the backup battery disposed in the cabinet, the cooling capacity distribution unit can provide its own power supply and a self-contained power function, to eliminate a UPS and its backup power outside the cooling capacity distribution unit, and reduce costs and an occupied space. The self-contained power is added with an interface on the basis of a driver to avoid low efficiency of multi-level conversion.