Welding Torch Gooseneck Locking for Stable Electrical Contact
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing MIG welding torches face issues with compressive collar designs that require high torque for electrical conduction, leading to thread wear, deformation of goosenecks, and potential arching due to poor connections, exacerbated by user handling as a hammer.
Innovation Solution
A receiving member with a non-conductive coupling and locking mechanism that prevents axial and radial movement of the gooseneck, using a non-conductive material to insulate the locking section and conductive section, ensuring secure electrical connection without compressive force reliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compressive collar design is used to secure gooseneck, then electrical connection is achieved, but high torque is required leading to thread wear and deformation
Solution Approach 1:
The patent replaces the traditional mechanical compressive collar system with a bayonet-style locking mechanism that uses rotational engagement and lateral locking features. This substitution eliminates the need for high-torque threaded fasteners while maintaining secure electrical connection through positive mechanical engagement and spring-loaded contact pressure.
Solution Approach 2:
The receiving member is divided into distinct functional sections: a locking section with bayonet engagement features and a conductive section with electrical contacts. This segmentation allows the locking mechanism and electrical connection to be optimized independently, with the locking section providing secure mechanical retention without requiring high compressive forces on the electrical contacts.
2Stability of the object's composition
If compressive collar is tightened to ensure electrical conduction, then connection stability improves, but gooseneck deformation occurs
Solution Approach 1:
The bayonet-style locking mechanism replaces the compressive collar system, providing connection stability through rotational engagement and lateral locking features rather than axial compression. This eliminates the deformative effect on the gooseneck while maintaining stable electrical and mechanical connections.
Solution Approach 2:
The design incorporates spring-loaded electrical contacts that provide pre-compression and cushioning force. This allows the gooseneck to be securely retained without excessive compressive force that would cause deformation, as the spring mechanism maintains adequate contact pressure within safe limits.
3Reliability
If non-conductive coupling is used to insulate locking and conductive sections, then electrical isolation is achieved, but manufacturing complexity increases
Solution Approach 1:
The non-conductive coupling is integrated directly into the receiving member as a unified component rather than being a separate assembly. The coupling features molded-in locking features and spring-loaded electrical contacts, combining multiple functions (mechanical retention, electrical connection, and insulation) into a single molded part that simplifies manufacturing and assembly.
Solution Approach 2:
The receiving member utilizes composite construction with a non-conductive coupling material that provides both electrical isolation and structural support. This composite approach allows the locking section and conductive section to be electrically isolated while maintaining mechanical integrity through the integrated non-conductive material.
Data Source
AI summary
Rotating electrical connection with locking axial and radial positions for use in welding and cutting devices including a non-conductive coupling that isolates the current path between a locking section and a conductive section of the receiving member body. The receiving member body including a release member designed to exert a compressive force on an interference member.