Cable Connection Box Overvoltage Protection Module Pin Alignment

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Solution Overview

Problem

Existing cable junction boxes for light poles require complex cabling and large spaces for overvoltage protection modules, making installation and handling cumbersome and prone to incorrect connections.

Innovation Solution

A compact overvoltage protection module with rigid connecting pins that directly engage with the output terminals of the connection block, eliminating the need for complex cabling and allowing for a flush, space-saving installation, and ensuring correct connections through fixed pin alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If standard overvoltage protection modules with cable connections are used, then electrical connection can be achieved, but the housing must be dimensioned very large and installation becomes complex

Engineering Contradiction:
Improveelectrical connectionVSAvoidhousing space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The overvoltage protection module is nested directly into the connection block housing, with the protective device integrated inside the same housing space. This eliminates the need for separate external modules and large housing dimensions, as the protection function is embedded within the existing structural boundaries.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The overvoltage protection module and connection block are merged into a single integrated unit. The protective device is combined with the connection block structure, sharing common housing and mounting space, thereby eliminating the need for separate large-dimensional housings for each component.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If standard overvoltage protection modules with cable connections are used, then electrical connection can be achieved, but installation and handling become cumbersome

Engineering Contradiction:
Improveelectrical connectionVSAvoidinstallation and handling
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connection pins are pre-positioned and pre-aligned on the overvoltage protection module before installation. This preliminary positioning ensures that when the module is installed, the electrical connections are automatically established without requiring complex manual cabling or alignment procedures during installation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The complex cabling and wiring operations are extracted and eliminated from the installation process. Instead of requiring manual cable routing and connection during installation, the patent uses pre-configured connection pins that establish electrical contacts automatically upon module installation, simplifying the installation procedure.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP3176878B1Cable connection box and overvoltage protection module for a cable connection box
Publication Date: 2019.03.20 STADTFELD ELEKTROTECHNISCHE FABRIK GMBH & CO KG
  • EP3176878B1 patent drawingFigure 1
  • EP3176878B1 patent drawingFigure 2
  • EP3176878B1 patent drawingFigure 3

AI summary

The invention relates to a cable junction box (1), particularly for installation in lighting masts, comprising at least one terminal block (2) with input terminals (3) and output terminals (4a, 4b) and a surge protection module (7) with an electronic protection device that can be connected to the output terminals (4a, 4b) of the terminal block (2). This cable junction box (1) is characterized in that the surge protection module (7) has several terminals (8) and several electrically conductive connecting pins (9a, 9b) connected to the terminals (8) via the protection device, wherein the connecting pins (9a, 9b) are aligned with the output terminals (4) of the terminal block (2) such that they engage in the output terminals (4) when the surge protection module (7) is plugged into the terminal block (2).