Modular Hot-Pluggable Power Modules for Server Rack Space Optimization
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Solution Overview
Problem
Conventional Uninterruptible Power Supplies (UPS) are bulky and occupy valuable space in server racks, and their batteries are sensitive to heat, particularly at the rear of server racks where cooling air is less effective.
Innovation Solution
The integration of power modules within modular data storage slots at the front of servers, utilizing energy storage devices like lithium-ion batteries and modular multi-level converters, which are designed to fit within existing hard drive bays, providing a secondary power source and managing energy transfer with control circuitry to maintain cooler operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional UPS systems are used to provide uninterrupted power supply, then power backup capability is ensured, but physical space in server racks is significantly occupied
Solution Approach 1:
The patent divides the traditional monolithic UPS system into modular power modules that can be distributed across multiple server racks. Each module contains a portion of the total battery capacity and power conversion equipment, allowing the backup power function to be segmented and distributed rather than concentrated in one large unit.
Solution Approach 2:
The power modules are designed to be nested within existing server rack infrastructure, utilizing standard rack mounting spaces and integrating with existing cooling and power distribution systems. The modules fit within the hierarchical structure of data center infrastructure.
2Reliability
If UPS batteries are placed at the rear of server racks, then power supply function is achieved, but battery temperature increases due to reduced cooling effectiveness
Solution Approach 1:
The system dynamically adjusts power module locations and cooling resource allocation based on thermal conditions. Power modules can be repositioned between front and rear rack locations, and cooling airflow is dynamically optimized to ensure batteries operate within optimal temperature ranges while maintaining power supply functionality.
Solution Approach 2:
The patent implements localized cooling solutions targeted at power module locations. Rather than relying on general rack cooling, dedicated cooling airflow paths and thermal management resources are allocated specifically to power module zones, ensuring optimal thermal conditions regardless of module position.
3Area of stationary object
If power modules are integrated into modular data storage slots at the front of servers, then space efficiency is improved and cooling is enhanced, but device complexity increases
Solution Approach 1:
The power modules are designed with universal mounting interfaces and standardized form factors that allow them to be installed in existing server rack slots originally designed for storage devices. The modules use standard electrical connectors and mounting mechanisms, enabling multi-functional use of existing rack infrastructure without requiring specialized installation hardware.
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
This solution reduces the physical footprint of UPS systems and maintains battery health by exposing power modules to cooler ambient air, enhancing operational efficiency and reliability while optimizing space usage in data centers.
Implementation Method 1
utilizing energy storage devices like lithium-ion batteries
Implementation Method 2
exposing power modules to cooler ambient air
Data Source
AI summary
An example power module includes an energy storage device, an energy storage carrier, and an electrical connector. The energy storage carrier houses the energy storage device and is removably insertable into a modular data storage slot of a computing device. The modular data storage slot has a data path and a first power path to removably couple to a data storage module. The electrical connector is to transfer energy from the energy storage device to a second power path associated with the modular data storage slot.