Neutral Connection Device Homogeneity in Electrical Distribution Systems

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In electrical distribution systems, the neutral components often have a different form factor than other phases, making them difficult to access and increasing assembly costs due to the need for unique connections, which complicates the integration with other components like circuit breakers.

Innovation Solution

The introduction of a neutral connection device with a uniform form factor that is easily accessible, integrated with a bus bar assembly and circuit breaker, allowing for a standardized neutral connection that aligns with the end of electrical devices, reducing the footprint and enabling easier assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional neutral components are used with different form factors, then neutral connections can be established, but accessibility becomes difficult and assembly cost increases

Engineering Contradiction:
Improveaccessibility of neutral componentVSAvoiddifferent form factor requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies homogeneity by making the neutral connection device have the same form factor and dimensions as the phase connection devices. The neutral connection device includes a housing, conductive component, and terminal matching the phase devices, allowing uniform installation and access across all connection points in the electrical distribution system.

Inventive Principle:
Principle #33Homogeneity

2Ease of manufacture

If traditional neutral components with different form factors are used, then neutral connections are established, but assembly cost increases due to unique connections

Engineering Contradiction:
Improveassembly costVSAvoidunique connection requirement
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent applies universality by designing the neutral connection device with the same structure, housing, and terminal configuration as the phase connection devices. This universal design allows the same assembly process, mounting methods, and connection techniques to be used for all devices, eliminating the need for unique assembly procedures and reducing manufacturing costs.

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

3Area of stationary object

If traditional neutral components are used, then neutral connections are established, but the system footprint increases

Engineering Contradiction:
Improvesystem footprintVSAvoidneutral connection access
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The patent applies homogeneity by ensuring the neutral connection device has identical dimensions and form factor as the phase connection devices. This allows all connection devices to be arranged in a compact, uniform pattern on the bus bar assembly, optimizing space utilization and minimizing the overall system footprint while maintaining equal accessibility to all connection points.

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentUS10218159B2Electrical distribution system including neutral connection device and methods of assembling same
Publication Date: 2019.02.26 ABB (SCHWEIZ) AG
  • US10218159B2 patent drawing
  • US10218159B2 patent drawing
  • US10218159B2 patent drawing

AI summary

An electrical distribution system is provided. The system includes a bus bar assembly including a neutral bus bar and a plurality of power bus bars. The system further includes a circuit breaker including a first end and a second end opposite the first end, the first end including a plurality of first conductive terminals electrically coupled to respective power bus bars, the second end including a plurality of second conductive terminals located a first distance from the plurality of power bus bars. The system further includes a neutral connection device including a first conductive terminal electrically coupled to the neutral bus bar, a second conductive terminal, and a conductive component, the neutral connection device second conductive terminal located a second distance from the neutral bus bar, the second distance one of greater than the first distance and equal to the first distance.