Busbar Adapter Slideable Cover for Terminal Protection

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Solution Overview

Problem

Busbar adapters lack a mechanism to protect electrical terminals when a power delivery module is removed, leading to potential damage and maintenance issues.

Innovation Solution

The introduction of a busbar adapter design featuring a post portion, electrical terminal, and a slideably engaged cover, where a spring or lever assembly extends the cover to shield the terminal when the module is removed, preventing exposure and ensuring terminal protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a busbar adapter is designed without a cover mechanism, then the device complexity is reduced, but the electrical terminals are exposed to damage and contamination when the module is removed

Engineering Contradiction:
Improveterminal exposure to damageVSAvoidadapter structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The cover is positioned in advance to cover the electrical terminals before the module is removed. When the module is detached, the cover automatically moves into place to shield the terminals, preventing exposure to harmful factors such as contamination and damage.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The spring mechanism enables the cover to automatically move and position itself based on the presence or absence of the module. The system self-regulates the cover's position without requiring external control, transitioning between covering and exposed states as the module is installed or removed.

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If a cover mechanism is added to protect terminals, then terminal protection is improved, but the ease of operation is reduced due to additional components

Engineering Contradiction:
Improveterminal damage preventionVSAvoidadapter operation
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The spring-loaded cover automatically transitions between covering and exposed positions in response to module installation or removal. This self-actuating mechanism eliminates the need for manual operation, maintaining ease of use while providing terminal protection.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The cover is designed as a dynamic component that can move between different positions (covering and exposed) based on operational conditions. The spring mechanism provides the necessary force for automatic transition, allowing the system to adapt to different states without complex control.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If the cover is always extended to shield terminals, then terminal protection is maximized, but the productivity is reduced due to additional steps for module installation

Engineering Contradiction:
Improveterminal shieldingVSAvoidmodule installation speed
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The cover dynamically adjusts its position based on the module installation state. During installation, the module pushes the cover inward to expose terminals for connection. After installation, the spring automatically returns the cover to its extended protective position, providing continuous protection without manual intervention.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cover is pre-positioned in the extended protective state and only moves inward when necessary during module installation. This preliminary positioning ensures terminals are protected during storage and operation, while the automatic movement mechanism minimizes interference with the installation process.

Inventive Principle:
Principle #10Preliminary action

4Object-affected harmful factors

If a spring mechanism is used to extend the cover, then terminal protection is improved, but the device complexity increases due to additional components

Engineering Contradiction:
Improveterminal exposure preventionVSAvoidcover mechanism
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The spring mechanism provides self-actuating operation, automatically positioning the cover based on the module's presence or absence. This eliminates the need for motors, sensors, or control circuits, maintaining simplicity while achieving automatic terminal protection.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The spring mechanism extracts the complexity of automatic control from the system, using simple mechanical energy storage and release to achieve the covering action. This mechanical approach is simpler than electrical or electronic control systems would require.

Inventive Principle:
Principle #2Taking out (Extraction)

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 solution effectively shields unoccupied electrical terminals, preventing damage, conserving repair materials, and maintaining terminal cleanliness, while ensuring robust electrical connections.

Implementation Method 1

The spring can urge the cover away from the post portion

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentEP3787131B1Busbar adapter with shielded terminals
Publication Date: 2023.04.05 ROCKWELL AUTOMATION SWITZERLAND
  • EP3787131B1 patent drawingFigure 1
  • EP3787131B1 patent drawingFigure 2
  • EP3787131B1 patent drawingFigure 3A~3B

AI summary

An electrical adapter includes a post portion (116, 216), an electrical terminal, and a cover (140, 240). The electrical terminal extends from the post portion (116, 216). The cover (140, 240) is slideably engaged with the post portion (116, 216) to selectively shield the electrical terminal.