Spring-Biased Terminal Block Test Adapter for Current Continuity

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Solution Overview

Problem

Existing CT shorting terminal blocks require disconnection of wires for testing, leading to current interruption and potential arc flashing and electrocution risks.

Innovation Solution

A terminal block test adapter with spring-biased connector posts that allow for releasable connection of test wires without breaking or shorting current, ensuring continuous circuit flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wires are disconnected from terminal posts for testing, then testing access is improved, but current interruption and safety risks occur

Engineering Contradiction:
Improvetesting accessVSAvoidcurrent continuity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a test adapter as an intermediary device that connects to the terminal block without requiring disconnection of the circuit wires. The adapter includes connector posts that interface with the terminal posts while maintaining continuous electrical connection, allowing test wires to be connected through the adapter without breaking the circuit current.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the testing function from the main circuit by introducing a separate test adapter assembly. The adapter contains multiple connector posts that are electrically connected to the terminal posts, creating a separate testing interface that does not interrupt the primary circuit current flow.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If wires are disconnected from terminal posts for testing, then testing accessibility is improved, but arc flashing and electrocution risks increase

Engineering Contradiction:
Improvetesting accessibilityVSAvoidarc flashing and electrocution risks
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The test adapter serves as a mediator that provides a safe interface for testing. By connecting test wires to the adapter's connector posts rather than directly to the terminal posts, the design eliminates the need to disconnect circuit wires, thereby preventing arc flashing and electrocution risks associated with breaking electrical connections.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If spring-biased connector posts are used, then connection reliability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidadapter structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs spring-biased connector posts that provide dynamic, self-adjusting electrical connections. The spring mechanism automatically maintains contact pressure between the connector posts and terminal posts, ensuring reliable electrical connection without requiring complex locking or adjustment mechanisms.

Inventive Principle:
Principle #15Dynamics

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

Ensures safe and uninterrupted electrical testing by maintaining constant contact with terminal block posts, preventing arc flashing and electrocution.

Implementation Method 1

a plurality of spring biased connector posts within post housings adapted to be linearly aligned with connector posts within post housings of the terminal block

Methodology Applied
Scientific EffectSpring bias: Spring

Data Source

PatentUS12422454B2Terminal block test adapter
Publication Date: 2025.09.23 WOOLSEY CAMERON
  • US12422454B2 patent drawing
  • US12422454B2 patent drawing
  • US12422454B2 patent drawing

AI summary

A terminal block test adapter releasably attached to a terminal block for releasably connecting electrical wires thereto without breaking or shorting current flowing through the terminal block. The terminal block test adapter includes a plurality of spring biased connector posts within post housings adapted to be linearly aligned with connector posts within post housings of the terminal block. When in use, a proximal end of each connector post of the terminal block test adapter is adapted to be used for releasably connecting a test wire thereto for electrical testing purposes without breaking or shorting current flowing through the terminal block.