Wire Termination Device Mechanical Coupling Feedthrough Pin

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Solution Overview

Problem

Coupling wires to feedthrough devices is laborious and can cause thermal stress fatigue and stress concentrations, leading to potential failure due to the need for soldering, which heats the devices.

Innovation Solution

A wire termination device with a housing and retention member that engages the pin of the feedthrough device, allowing for mechanical coupling without heating the feedthrough device, providing a secure and tamper-resistant electrical connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If soldering is used to couple wires to feedthrough devices, then electrical connection is achieved, but thermal stress fatigue and stress concentrations occur leading to potential failure

Engineering Contradiction:

Improveconnection reliabilityVSAvoidthermal stress

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the thermal soldering process with a mechanical crimping system. The wire termination device uses a crimping mechanism that mechanically deforms a retention member to secure the wire to the feedthrough device pin, eliminating the need for heat application and associated thermal stress fatigue.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The wire termination device acts as an intermediary component between the wire and the feedthrough device. It includes a retention member that mechanically engages with the pin of the feedthrough device, providing a secure connection without direct thermal contact to the feedthrough device.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If mechanical coupling is used instead of soldering, then thermal stress is avoided, but the connection process becomes more complex

Engineering Contradiction:

Improvethermal stress avoidanceVSAvoidcoupling mechanism complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The wire termination device is segmented into distinct functional components: a housing that protects the connection, a retention member that secures the wire, and a crimping mechanism that applies the mechanical force. This segmentation allows each component to perform its specific function efficiently while keeping the overall device manageable in complexity.

Inventive Principle:

Principle #1Segmentation

3Reliability

If traditional wire attachment methods are used, then secure connection is achieved, but the process is laborious and time-consuming

Engineering Contradiction:

Improveconnection securityVSAvoidassembly speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The wire is pre-positioned within the housing of the wire termination device before the crimping operation. This preliminary positioning ensures that the wire is correctly aligned with the retention member, allowing the crimping mechanism to quickly secure the connection without requiring complex alignment procedures during the assembly process.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11688967B2Wire termination device for coupling a wire to a feedthrough device and system including the same

Publication Date: 2023.06.27 KYOCERA AVX COMPONENTS CORP

AI summary

A wire termination device for coupling a wire to a feedthrough device is disclosed. The wire termination device can include a housing having a first end and a second end spaced apart from the first end in a longitudinal direction. The housing can define a cavity and an opening to the cavity at the first end for receiving a pin of the feedthrough device. The pin of the feedthrough device can extend in the longitudinal direction. The wire termination device can include a retention member coupled to the housing and located at least partially within the opening of the housing. The retention member can be configured to engage the pin of the feedthrough device to retain the pin of the feedthrough device in the opening of the housing.