Rack Power and Data Bus for Server Shelf Interconnect
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Solution Overview
Problem
Large-scale computing systems face challenges with the high cost and complexity of routing power and data cables between racks and computing components, leading to increased space requirements and reduced accessibility.
Innovation Solution
A modular kit comprising a rack, a main bus bar, and interchangeable shelves with a power and data bus (PDB) that blind mates with the main bus bar, reducing the need for multiple cables by allowing power and data to flow directly between the bus bar and computing devices through blind mating connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are used to route power and data between the PCB and computing components, then power and data can be transferred, but the number of cables increases with the number of computing devices, leading to increased space requirements and reduced accessibility
Solution Approach 1:
The patent combines multiple separate cable connections (power and data) into a single integrated Power and Data Bus (PDB) connector. The PDB consolidates multiple conductors into one unified interface that simultaneously carries both power and data signals between the PCB and computing components, thereby reducing cable complexity while maintaining reliable power and data transfer.
Solution Approach 2:
The PDB connector serves multiple functions simultaneously: it provides both power delivery and data communication through a single unified interface. This multi-functional design eliminates the need for separate power cables and data cables, reducing overall system complexity while maintaining all necessary connections.
2Adaptability or versatility
If a large number of cables are used to connect the PCB to computing components, then all devices can be powered and connected, but space requirements increase and accessibility to computing components is reduced
Solution Approach 1:
Multiple cable connections are merged into a single PDB connector that provides both power and data pathways. This consolidation dramatically reduces the physical space required for cable routing and management, allowing computing components to be positioned more efficiently within the rack while maintaining full connectivity.
Solution Approach 2:
The patent transitions from a distributed cable routing approach (requiring three-dimensional space for multiple cables) to a planar bus bar architecture where power and data are delivered through a two-dimensional interface. This dimensional change reduces the volumetric space requirements and improves accessibility.
3Ease of manufacture
If standardized rack sizes are used to house computing components, then rack deployment is simplified, but flexibility in configuring different device arrangements is limited
Solution Approach 1:
The PDB connector is designed as a universal interface that can accommodate different computing component configurations within standardized racks. The same PDB design works across various device arrangements and rack configurations, providing both deployment simplicity and configuration flexibility through its multi-functional capability.
Solution Approach 2:
The system allows dynamic reconfiguration of computing components within the standardized rack framework. The PDB's universal design enables components to be moved, added, or removed without requiring custom cable routing, providing adaptability while maintaining standardized deployment procedures.
Data Source
AI summary
Aspects of the disclosure relate generally to relates server rack architecture for housing computing components on a plurality of shelves. More specifically, the shelves of a particular rack may each include a power and data bus (“PDB”) pre-configured to support a particular number of devices of the shelf. A PDB may also include a number of power and data connections for blind mating with the devices of the shelf. The PDB may include two blades which extend away from the PDB and blind mate with the main bus bar. Thus, each PDB may route both power and data signals between a main bus bar for the rack and each of the devices of the shelf. A shelf may be reconfigured for a different number of devices by changing the configuration of the PDB.