Socket Junction Box With Piercing Contacts for Flat Cable Wiring

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Solution Overview

Problem

Existing electrical installation methods for sockets in buildings are time-consuming and costly, often requiring skilled labor and involving complex cable stripping procedures.

Innovation Solution

A connection system comprising a junction box with piercing contact elements that directly connect to a flat cable without stripping, allowing quick and secure installation of sockets by electrically connecting plug wires to the cable through a clamping mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional cable stripping procedures are used to connect sockets, then reliable electrical connection is achieved, but installation time and labor costs increase significantly

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the traditional mechanical cable stripping and wire twisting process with a piercing contact mechanism. The piercing contact element mechanically penetrates the cable insulation and directly contacts the conductor, eliminating the need for stripping tools and manual wire preparation while ensuring reliable electrical connection.

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

Solution Approach 2:

The piercing contact element serves as an intermediary component between the cable and the socket connection. It bridges the gap by penetrating through the insulation layer and establishing direct contact with the conductor, simplifying the connection process without compromising electrical reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If traditional cable stripping procedures are used to connect sockets, then reliable electrical connection is achieved, but labor costs and complexity increase

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The piercing contact mechanism is designed to perform the connection function automatically when the socket is installed. The piercing element self-penetrates the cable insulation and establishes contact without requiring external tools or complex manual operations, reducing both labor costs and installation complexity while maintaining connection reliability.

Inventive Principle:
Principle #25Self-service

3Productivity

If piercing contact elements are used to connect cables, then installation time is reduced, but connection security must be maintained

Engineering Contradiction:
Improveinstallation speedVSAvoidconnection security
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The piercing contact element is pre-configured with the appropriate geometry and material properties to ensure secure contact upon insertion. The piercing action is designed to occur automatically during the installation process, creating a reliable mechanical and electrical connection before the socket is fully installed, thus maintaining connection security while enabling rapid installation.

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

Facilitates rapid socket installation with minimal errors, reducing installation time and labor requirements while ensuring immediate functionality and compatibility with various socket types.

Implementation Method 1

The junction box includes several piercing contact elements for contacting the flat cable without stripping. The piercing contact elements penetrate the insulation of a flat cable core and contact the corresponding core conductor.

Methodology Applied
Scientific EffectPiercing contact:

Data Source

PatentEP4611175A1Socket connection system
Publication Date: 2025.09.03 WOERTZ
  • EP4611175A1 patent drawingFigure 1
  • EP4611175A1 patent drawingFigure 2
  • EP4611175A1 patent drawingFigure 3

AI summary

A connection system for a socket, wherein the connection system comprises a junction box for electrically connecting the socket to a flat cable as a through-line, and wherein the socket can be placed directly onto the junction box. The junction box comprises a plurality of piercing contact elements for contacting the flat cable without stripping, wherein the junction box comprises connecting elements which electrically connect the piercing contact elements to socket contacts via the connecting elements. The socket contacts electrically connect a plug inserted into the socket to wires of the flat cable. The specialist cable can be inserted into an area of ​​the junction box separate from the socket, and the piercing contact elements contact the wires of the flat cable without stripping when a clamping mechanism is actuated.