Modular Switchgear Assembly with Standardized Interfaces

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Solution Overview

Problem

Current switchgear assembly processes are complex and lack standardization, making it difficult to modify or replace components after completion, and existing components are not stable enough for easy packaging and transportation.

Innovation Solution

A modular switchgear design featuring a base body with mechanical and electrical interfaces for connecting and testing independent modules, such as busbar, communication, and control modules, which can be easily combined and replaced, allowing for standardized and efficient assembly, maintenance, and updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If switchgear is assembled in higher-level systems with pre-integrated components during production, then component functionality is ensured, but assembly complexity increases and modifications become difficult

Engineering Contradiction:
Improvecomponent functionalityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The switchgear is divided into independent, standardized modules that can be individually assembled and tested before final integration. Each module contains specific functions (busbar, communication, control) and can be independently handled, reducing overall assembly complexity while maintaining reliability through modular testing and replacement capabilities

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple housing depths and material variants are combined, then design flexibility increases, but standardization level decreases

Engineering Contradiction:
Improvedesign flexibilityVSAvoidstandardization level
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

A standardized housing design with universal mounting interfaces and dimensions is implemented across all modules. This single housing variant can accommodate different module types (busbar, communication, control) through standardized interfaces, providing design flexibility without requiring multiple housing depths or material variants, thus maintaining high standardization levels

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

3Reliability

If components are packaged for protection during transport, then component reliability is maintained, but packaging complexity and cost increase

Engineering Contradiction:
Improvecomponent protectionVSAvoidpackaging complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

By segmenting the switchgear into robust, self-contained modules with standardized interfaces, each module can be individually packaged in simple, standardized containers. The modular design with reinforced housings protects components during transport without requiring complex custom packaging, reducing both packaging complexity and cost while maintaining component reliability

Inventive Principle:
Principle #1Segmentation

4Ease of repair

If modules are designed as self-contained units with interfaces, then ease of replacement improves, but manufacturing complexity increases

Engineering Contradiction:
Improveease of replacementVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of repairVSEase of manufacture

Solution Approach 1:

All modules are designed with identical standardized interfaces, mounting mechanisms, and housing dimensions. This homogeneity in interface design simplifies manufacturing through standardized production processes and tooling, while simultaneously enabling easy replacement and interchangeability of modules in the field, resolving the contradiction between ease of repair and manufacturing complexity

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentEP3391717A1Modular switchgear assembly on a main body with a power and communications rail
Publication Date: 2018.10.24 ABB (SCHWEIZ) AG

AI summary

A switchgear assembly (1) comprising a main body (2) with electrical and/or mechanical components (2a) comprises, in respect of the problem of providing a switchgear assembly which can be constructed without problems as far as possible and also can be easily modified after completion, a main body (2) with electrical and mechanical components (2a) and one or more functional units which are in the form of a module (3, 4), such as a busbar module, a communications module and/or a device module, as a result of which the basic functionality, specifically of distributing current and information, can be implemented, wherein the main body (2) has at least one mechanical and electrical interface (2b) to which at least one module (3, 4) is connected or can be connected to the main body (2) in a reversible manner, wherein the respective module (3, 4) is in the form of a spatially limited or spatially closed-off unit.