Anti-Backout Lock for Electrical Set Screw Connectors
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Solution Overview
Problem
Set screws in electrical connectors can accidentally or intentionally be loosened or removed, leading to compromised electrical connections, increased resistance, thermal issues, and potential system damage over time.
Innovation Solution
An electrical connector design featuring a terminal block with a threaded aperture and a channel, incorporating an anti-backout lock mechanism that secures the set screw against unintentional movement, using a combination of counter-bores, wedges, and cam locks to prevent rotation and ensure secure fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a set screw is used to secure an electrical conductor, then the electrical connection is established, but the set screw can be accidentally or intentionally loosened or removed over time
Solution Approach 1:
The patent applies preliminary anti-action by incorporating a lock mechanism that proactively prevents the set screw from loosening or rotating. The lock engages with the set screw to create a counteracting force that opposes any loosening movement, thereby maintaining connection integrity and preventing the set screw from deviating from its intended position over time.
2Reliability
If a lock mechanism is added to prevent set screw loosening, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the lock mechanism with the existing connector components, integrating the anti-loosening function into the overall connector structure. The lock is incorporated within the terminal block housing and works in conjunction with the set screw and conductor, creating a unified assembly that prevents loosening without requiring entirely separate or additional complex subsystems.
Data Source
AI summary
An electrical connector is configured to couple an electrical conductor to a support surface. The electrical connector includes a terminal block having a connecting aperture, a threaded aperture, and a channel. At least a portion of the threaded aperture is positioned between the channel and the connecting aperture. The connecting aperture is configured to receive the electrical conductor. The electrical connector includes a fastener having threads receivable within the threaded aperture. The fastener is configured to secure the electrical conductor against movement relative to the terminal block. The electrical connector includes a lock receivable within the channel to inhibit unintentional movement of the fastener relative to the terminal block.