Modular Rack PDU Outlet Board Design

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Solution Overview

Problem

Existing rack power distribution units (rPDUs) face challenges in accommodating different outlet types, leading to difficulties in configuration, increased fabrication complexity and cost, and issues with wire management and assembly.

Innovation Solution

A flexible and configurable rPDU design featuring modular outlet modules with interchangeable outlet types, such as C13 and C19, and a universal outlet board that can accommodate various configurations, allowing for easy adaptation to customer specifications and streamlined manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional rack power distribution units are designed to accommodate different outlet types, then the system can support multiple equipment power requirements, but the fabrication complexity and cost increase significantly

Engineering Contradiction:
Improveoutlet type compatibilityVSAvoidfabrication complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The outlet board is designed with a universal structure that can accommodate multiple outlet types (C13, C19, and other configurations) through a single standardized platform. The modular outlet modules can be interchangeably mounted on the same outlet board, eliminating the need for multiple specialized boards for different outlet types.

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

Solution Approach 2:

The power distribution unit is divided into modular outlet modules, each containing specific outlet types. These modules can be independently configured and assembled on a standardized outlet board, allowing flexible mixing and matching of different outlet types without increasing overall system complexity.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If rack power distribution units are customized for specific outlet configurations, then customer specifications are met precisely, but fabrication time and cost increase

Engineering Contradiction:
Improveconfiguration flexibilityVSAvoidfabrication speed
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The outlet board is pre-designed with standardized mounting locations and electrical connections that can accommodate various outlet module configurations. This preliminary standardization allows for rapid assembly of different outlet arrangements without requiring custom fabrication for each configuration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system allows dynamic reconfiguration of outlet modules on the outlet board. Customers can specify different outlet arrangements, and the modular design enables quick reassembly to meet these specifications without restarting the fabrication process, thus maintaining high productivity while accommodating customization.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple outlet types are integrated into a single power distribution unit, then wire management becomes more challenging, but the system provides comprehensive power distribution capability

Engineering Contradiction:
Improvepower distribution capabilityVSAvoidwire management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

By segmenting the power distribution unit into modular outlet modules, each with its own contained wiring and electrical connections, the patent reduces wire management complexity. Each module can be independently wired and tested before final assembly, making it easier to handle multiple outlet types without creating a tangled wiring harness.

Inventive Principle:
Principle #1Segmentation

4Ease of manufacture

If traditional designs use fixed outlet configurations, then manufacturing is simpler, but the system cannot be easily adapted to different customer needs

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidcustomization capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic configuration system where outlet modules can be rearranged and reconfigured on the outlet board to meet different customer specifications. The standardized mounting system allows for easy reconfiguration without complicating the base manufacturing process, maintaining simplicity while enabling adaptability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3471522B1Flexible and configurable rack power distribution unit
Publication Date: 2021.12.01 SCHNEIDER ELECTRIC IT CORP
  • EP3471522B1 patent drawingFigure 1
  • EP3471522B1 patent drawingFigure 2
  • EP3471522B1 patent drawingFigure 3

AI summary

A rack power distribution unit is provided having one or more outlet modules. Each outlet module includes a body having a plurality of outlet openings. A plurality of outlets are configured to be inserted into, and retained within, the plurality of outlet openings. An outlet board is configured to be coupled to, and distribute power to, the plurality of outlets. A control board configured to be coupled to, and distribute power to, the outlet board, where the outlet board is configured to be coupled to a first outlet of a first type and a second outlet of a second type.