Screwless Busbar Connection Module with Transverse Clamping

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional busbar connection modules require a large amount of space due to the side-by-side arrangement of clamping devices and are complex in structure, necessitating the use of screws for assembly and disassembly, which is cumbersome and time-consuming.

Innovation Solution

A screwless busbar connection module design where clamping devices are aligned one behind the other in a plane, allowing stripped cable ends to be automatically locked by a clamping spring and easily released using a tool, with a compact width and adaptable to various cable cross-sections, featuring a housing with a cover that can be opened without removal during wiring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If clamping devices are arranged side-by-side in the longitudinal direction, then the connection module can accommodate multiple poles, but the space required increases and the structure becomes complex

Engineering Contradiction:
Improvemulti-pole capabilityVSAvoidspace required
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The clamping devices are arranged one behind the other in a transverse plane rather than side-by-side in the longitudinal direction. This dimensional reconfiguration reduces the longitudinal space required while maintaining multi-pole functionality through the transverse arrangement of clamping devices within the housing.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If screw fastening is used for clamping devices, then secure connection is achieved, but assembly and disassembly become cumbersome and time-consuming

Engineering Contradiction:
Improveconnection securityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The clamping devices are designed with spring elements that automatically clamp the cable ends when inserted through through-openings. The spring mechanism self-activates upon insertion, eliminating the need for manual screw fastening and enabling quick assembly without tools while maintaining secure connection through the spring force.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual screw fastening system is replaced with an automatic spring clamping mechanism. The spring element provides the clamping force automatically when the cable is inserted, substituting the manual mechanical screw operation with an automatic elastic mechanical system that achieves secure connection faster.

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

3Area of stationary object

If clamping devices are arranged one behind the other in a plane, then space is reduced and assembly is simplified, but the design becomes more constrained

Engineering Contradiction:
Improvespace requiredVSAvoidstructural constraints
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

Multiple clamping devices are integrated into a single housing structure arranged in a transverse plane. The housing combines multiple clamping functions in a compact configuration, reducing overall space while managing structural constraints through unified design of the housing and partition walls that support all clamping devices in the constrained plane.

Inventive Principle:
Principle #5Merging (Combining)

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 enables quick and simple assembly and disassembly of cable ends without the need for screws, reducing space requirements and ensuring secure, vibration-proof connections while maintaining electrical contact, suitable for cables up to 16 mm in cross-section.

Implementation Method 1

automatically locked by a clamping spring

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The stripped cable ends are in electrical contact with the respective contact spring

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP1764872B1Bus bar connection module
Publication Date: 2014.06.18 WOHNER GMBH & CO KG ELEKTROTECHNISCHE SYST
  • EP1764872B1 patent drawingFigure 1
  • EP1764872B1 patent drawingFigure 2
  • EP1764872B1 patent drawingFigure 3

AI summary

The invention relates to a busbar connection module with a housing and a predetermined number of clamping devices arranged in the housing for receiving and fastening stripped conductor ends, with feet projecting from the underside of the clamping devices for fastening to busbars, wherein the clamping devices are arranged one behind the other in a plane and are designed without screws.