Conductive Bar Clip Connection for Busbar Wiring

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Solution Overview

Problem

The existing connection methods for conductive bars to electrical components in medium voltage current transmission networks are complex, prone to errors, and costly due to manual wiring and the rigidity of conductive bars, which complicates mechanical and electrical connections.

Innovation Solution

A mechanical and electrical connection system using a plate with conductive orifices and a clamp with hooks that securely fasten the conductive bar to the electrical component, ensuring both mechanical stability and electrical conductivity through a continuous conductive layer and solder application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual wiring with electric wires is used, then flexibility in routing is improved, but wiring complexity and error risk increase

Engineering Contradiction:
Improverouting flexibilityVSAvoidwiring complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical wiring operations with an automated mechanical connection system. The conductive bar with integrated clamp and hooks eliminates the need for manual wire routing and connection, achieving both automated precision and routing flexibility through the bar's predetermined geometry

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent merges the conductive bar, clamp, and connection elements into a single integrated component. This consolidation eliminates multiple separate wiring operations and reduces the number of discrete parts, thereby reducing overall wiring complexity while maintaining operational flexibility

Inventive Principle:
Principle #5Merging (Combining)

2Power

If conductive bars are used for strong current transmission, then current carrying capacity is improved, but mechanical connection difficulty increases due to bar rigidity

Engineering Contradiction:
Improvecurrent carrying capacityVSAvoidconnection ease
Core Design Contradiction:
PowerVSEase of manufacture

Solution Approach 1:

The patent segments the connection function into distinct elements: the rigid conductive bar for current transmission and the flexible clamp with hooks for mechanical connection. This segmentation allows the bar to maintain its rigidity for high current capacity while the separate clamp provides ease of connection

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the mechanical parameters of the connection system by introducing a clamp that can deform elastically to accommodate the rigid bar. The clamp's flexibility parameter compensates for the bar's rigidity, enabling easy connection while maintaining the bar's high current carrying capacity

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If manual wiring operations are performed, then adaptability to different configurations is improved, but cost and time consumption increase

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

Solution Approach 1:

The patent incorporates adaptability features directly into the manufactured conductive bar, such as pre-formed hooks and clamps with specific geometries. These preliminary actions are built into the component during manufacturing, eliminating the need for time-consuming manual adaptation while maintaining configuration versatility

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system provides a simple, reliable, and cost-effective method for connecting conductive bars to electrical components, reducing the risk of errors and complexity in wiring, while ensuring secure mechanical and electrical connections.

Implementation Method 1

a layer of continuous conductive material formed at the level of the orifices and which covers at least one lower face of the plate, surrounding the openings of the orifices

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP3214701B1Structure for the electrical connection of a busbar to an electrical component
Publication Date: 2021.06.30 SCHNEIDER ELECTRIC IND SAS
  • EP3214701B1 patent drawingFigure 1~2
  • EP3214701B1 patent drawingFigure 3~4
  • EP3214701B1 patent drawingFigure 5~6

AI summary

The invention relates to a mechanical and electrical connection system comprising a printed circuit board (12), a conductive bar (26) and an electrical component (16), characterized in that the board has a first orifice (32) in which a lower foot (30) of the bar (26) is received and has a second orifice (40) in which a leg (28) of the component (16) is received, and in that the bar (26) has an elastically deformable clip (34) which receives the leg (28) of the component (16).