Fuse Terminal Block Layout for Flexible Wire Clamp Assembly

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Solution Overview

Problem

Existing electrical conductor terminals require multiple modules for specific mounting systems, leading to inflexibility and complexity in installation and maintenance.

Innovation Solution

A compact terminal design with integrated fuse holders and push-in connections, allowing for flexible mounting and easy identification of connections, featuring a common bus conductor and optional LED indicators for fuse status, with a robust housing structure for secure assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple modules are used for specific mounting systems, then the clamp can be properly assembled, but the device complexity increases and flexibility decreases

Engineering Contradiction:
Improveassembly reliabilityVSAvoidmodule quantity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions (terminal connections, fuse holders, bus connection) into a single integrated clamp housing, eliminating the need for multiple separate modules and simplifying the overall assembly while maintaining reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The clamp housing serves multiple functions simultaneously: it provides structural support, houses terminal connections, contains fuse holders, and integrates bus connection conductors, making the device versatile and adaptable to different mounting scenarios without requiring additional modules

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

2Reliability

If multiple modules are used for specific mounting systems, then the clamp can be properly assembled, but the ease of operation decreases

Engineering Contradiction:
Improveassembly reliabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By merging all necessary components (terminals, fuse holders, bus connections) into a single pre-assembled clamp unit, the installation process is simplified to a single mounting operation rather than requiring the assembly of multiple separate modules, significantly improving ease of operation

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If a compact design is implemented, then the volume decreases, but the adaptability to different mounting systems decreases

Engineering Contradiction:
Improveclamp volumeVSAvoidmounting system adaptability
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The compact clamp housing is designed with universal adaptability through standardized mounting features and configurable terminal arrangements that can accommodate different mounting systems and applications, ensuring versatility despite the reduced size

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

Solution Approach 2:

The housing is divided into functional sections (terminal areas, fuse holder compartments, bus connection regions) that can be independently configured or adapted to different mounting requirements, maintaining versatility within a compact form factor

Inventive Principle:
Principle #1Segmentation

4Device complexity

If fuse holders are integrated into the housing, then the quantity of separate components decreases, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvecomponent quantityVSAvoidintegration precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The fuse holders are integrated directly into the housing structure as built-in features rather than separate attachable components, reducing the total part count while the manufacturing process incorporates precision molding or machining to ensure proper alignment and fit, balancing component reduction with manufacturing capability

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4002593B1Clamp for electrical wires
Publication Date: 2026.04.29 PHOENIX CONTACT GMBH & CO KG
  • EP4002593B1 patent drawingFigure 1~2
  • EP4002593B1 patent drawingFigure 3~4
  • EP4002593B1 patent drawingFigure 5

AI summary

A terminal (1) for electrical conductors (L1) comprises a housing (G) on which several terminals (A1-A6) are provided for electrically connecting one electrical conductor (L1) to each of the terminal conductors (14A-14F) arranged in the housing (G). The housing (G) is provided to have several fuse holders (R), each located adjacent to one of the terminals (A1-A6), and each of which a fuse (2) can be inserted to electrically connect the terminal conductor (14A-14F) of the respective terminal (A1-A6) to a common busbar (14).