Modular Rack System Vertical Stacking for Scalable IT Capacity

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Solution Overview

Problem

Conventional rack-based information handling systems are limited by fixed heights, forcing users to either purchase multiple racks for increased computing capacity or underutilize full racks due to height restrictions, leading to inefficiencies and increased costs.

Innovation Solution

A modular, scalable, and expandable rack system that includes a frame with a power and cooling area, block chassis for IT components, and a busbar for direct power supply, allowing for flexible deployment of IT components and block-level control, enabling the system to function as both a standalone IHS and an extension of a larger rack-based system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional rack chassis are built to standard height to fit through minimum door sizes, then the racks can be deployed in facilities with low ceiling heights, but the computing capacity is limited and customers needing more servers must purchase multiple racks

Engineering Contradiction:
Improvedeployment flexibilityVSAvoidcomputing capacity
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The rack system is divided into multiple rack units (RUs) that can be vertically stacked. Each RU contains standardized equipment bays, power modules, and cooling components. This segmentation allows customers to start with a compact configuration that fits through standard doorways and gradually add more RU modules to increase computing capacity without requiring multiple separate rack purchases

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from horizontal expansion (multiple side-by-side racks) to vertical expansion (stacked rack units). By utilizing the vertical dimension within a single rack footprint, the system accommodates low ceiling heights while providing scalable computing capacity through upward stacking of standardized RU modules

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If customers purchase multiple rack chassis to increase computing capacity, then more servers can be accommodated, but the system complexity increases and physical configuration between racks is required

Engineering Contradiction:
Improvecomputing capacityVSAvoidsystem configuration
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

Each rack unit is designed as a universal module containing standardized equipment bays, power distribution, and cooling. This universality allows any RU to be stacked with any other RU without customization, eliminating the need for complex physical configuration between racks. The standardized interfaces and pre-configured connections enable plug-and-play scalability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple rack units are merged into a single integrated rack system with shared power distribution, cooling, and management. This consolidation reduces system complexity by eliminating redundant components and inter-rack connections, while providing increased computing capacity within a unified architecture

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If full height rack chassis are purchased for smaller server needs, then the rack structure is available, but the bays remain empty and resources are underutilized

Engineering Contradiction:
Improverack structure availabilityVSAvoidresource underutilization
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The rack system transitions from a static full-height configuration to a dynamic, adjustable setup using standardized rack units. Customers can start with smaller RU configurations that match current server needs and easily expand vertically as requirements grow. This dynamic approach eliminates wasted space and resources by allowing the rack capacity to adapt to actual utilization levels

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9693464B2Modularly-expandable mini-rack server system
Publication Date: 2017.06.27 DELL PROD LP
  • US9693464B2 patent drawing
  • US9693464B2 patent drawing
  • US9693464B2 patent drawing

AI summary

A rack apparatus includes a frame having (i) a power and cooling area and (ii) a block chassis forming one or more information technology (IT) bays that enable insertion of IT components. A plurality of IT components are contained within a component cabinet inserted in the block chassis. When operational, enable the rack apparatus to function as one of an information handling system (IHS) and an extension of a modular, scalable/expandable rack-based IHS. A busbar physically located at a back of the block chassis within the power and cooling area and enables direct coupling to one of another busbar and a power source to supply power to the plurality of IT components from a power interface board. A block controller is contained in the block chassis and communicatively coupled to the other IT components. The block controller performs all localized, block level control for the rack apparatus.