Cable Clamping Device for Sealed Electrical Connector
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Solution Overview
Problem
Sealed electrical connectors are vulnerable to tensile stress due to the lack of crimping of cable insulation, which can lead to axial stress issues during handling and use.
Innovation Solution
A cable clamping device with a grid comprising a first jaw and a second jaw that are mobile relative to each other, allowing for clamping of the cables through elastically deformable hinges, facilitating assembly without tools and providing snap-locking functionality to secure cables within the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable insulation is not crimped in sealed connectors, then sealing integrity is maintained, but the connector becomes vulnerable to tensile stress on cables
Solution Approach 1:
The patent combines the sealing function and cable clamping function into a single integrated rear grid component. The grid structure simultaneously provides sealing support and mechanical clamping of cable insulation, eliminating the need for separate crimping operations while maintaining both sealing integrity and tensile stress resistance.
Solution Approach 2:
The jaws of the rear grid are designed to be mobile relative to each other, allowing dynamic adjustment during cable insertion. The jaws can open to accommodate cable passage and close to clamp the insulation, providing adaptive mechanical support without compromising the sealing function.
2Reliability
If a rear grid is used to retain and compress sealing joint, then sealing is improved, but the device complexity increases
Solution Approach 1:
The rear grid is designed as a multi-functional component that simultaneously performs sealing support, cable retention, and cable clamping functions. This universal component replaces what would traditionally require multiple separate parts, reducing overall device complexity while maintaining sealing quality.
Solution Approach 2:
The patent merges the sealing joint retention function with the cable clamping function into a single rear grid structure. The grid's dual-jaw design integrates both functions, reducing the number of components needed in the connector assembly.
3Ease of operation
If jaws are made mobile with elastically deformable hinges, then assembly without tools is enabled, but manufacturing precision requirements increase
Solution Approach 1:
The hinges are designed with specific elastic deformation characteristics that allow controlled movement during assembly. By carefully selecting material properties and geometric parameters of the hinges, the device achieves tool-free assembly while maintaining sufficient manufacturing precision through elastic recovery and controlled deflection.
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
Enhances the resistance of cables to axial stresses, reduces the number of components in the connector assembly, and protects cables from potential axial forces, while ensuring reliable sealing and stability even in environments with vibrations and impacts.
Implementation Method 1
the first jaw can be mounted in a mobile manner with respect to the second jaw using one or more elastically deformable hinges in such a way as to permit a rotary pivoting of the first jaw with respect to the second jaw
Implementation Method 2
the first jaw can be equipped with a ramp-shaped element with a slope descending in the direction of introduction of the grid into the opening of the housing
Data Source
Figure 1~2a
Figure 2b~3a
Figure 3b~3c
AI summary
The present invention relates to a cable clamping device 1 for a housing 101 of a sealed electrical connector 100, comprising a grid 3, itself comprising one or more orifices 9, 11 for receiving one or more cables 105, 107 respectively and such that the grid 3 comprises a clamping means for jamming the one or more cables 105, 107 in the at least one orifice 9, 11 of the grid 3. Thus, the grid 3, in addition to serving as a rear grid, makes it possible for the cables 105, 107 to be held even when they are under tensile stress. The present invention also relates to an electrical connector and also to a method for joining a cable clamping device 1 to a housing 101 of an electrical connector, in particular a sealed electrical connector 100.