Cable-Free Power Distribution Bus for Rack Components
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Solution Overview
Problem
The complexity and cost of traditional rack systems increase with the number of cables required for power distribution to multiple computer systems and components, leading to increased complexity and expense.
Innovation Solution
A cable-free power distribution system using a power distribution bus within a rack that directly couples Alternating Current (AC) power to components via an inter-rack power distribution unit (PDU), eliminating the need for physical cables by using conductive strips and locking mechanisms to secure components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cable-based power distribution is used in rack systems, then each component can be individually powered, but the number of cables increases with the number of components, leading to increased system complexity and cost
Solution Approach 1:
The patent merges multiple separate power cable connections into a single integrated power distribution bus that runs along the rack backbone. Instead of having individual cables from each component to a external power source, all components draw power through the shared bus structure, dramatically reducing cable quantity and management complexity while maintaining reliable power delivery to each slot.
Solution Approach 2:
The power distribution bus serves as a universal infrastructure that simultaneously provides power to multiple different component types (servers, storage devices, networking equipment) across multiple racks. This multi-functional bus system replaces the need for dedicated cable runs for each device, simplifying the overall power distribution architecture.
2Power
If multiple power cables are installed for each component in a rack, then each component receives adequate power, but the installation cost and maintenance complexity increase significantly
Solution Approach 1:
The power distribution bus is pre-installed and configured within the rack structure before components are added. The bus includes pre-positioned connection points and conductive elements that are ready to accept component power connectors, eliminating the need for complex cable routing and connection work during component installation. This preliminary preparation significantly reduces installation time and complexity.
3Device complexity
If a cable-free power distribution system is implemented using a power distribution bus, then cable complexity is reduced, but direct coupling without cables requires precise alignment and secure connection mechanisms
Solution Approach 1:
The power distribution bus employs asymmetric connector designs where the male connector on the component side has guiding features that mate with corresponding recesses in the bus receptacle. This asymmetric geometry provides self-alignment during insertion, ensuring precise electrical contact without requiring high-precision manual alignment, thus reducing the practical manufacturing and installation precision requirements.
Data Source
AI summary
A rack for housing electrically powered components, the rack including: a power distribution bus configured to distribute AC power among components installed in the rack via direct coupling without cables; a plurality of slots, each slot configured to receive a component; and one or more components, each component installed in one of the plurality of slots, each component directly coupled to the power distribution bus without a cable, at least one of the components comprising an inter-rack power distribution unit (‘PDU’) configured to provide AC power to other components installed in the rack via the power distribution bus.