Outlet Module Latch Mechanism for Secure PDU Removal
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Solution Overview
Problem
Conventional power distribution units (PDUs) face challenges with complex and costly latches that make it difficult to remove outlet modules from the housing, often leading to damage during assembly and disassembly.
Innovation Solution
A bracket-mounted latch mechanism with a plunger and link system that allows for easy attachment and detachment of outlet modules by pivoting latches, using threaded connections and resilient members for secure engagement with the PDU housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plastic latch features are used to retain the outlet module in the housing, then the module is secured to the housing, but the latch features make it difficult to remove the module and can be damaged during assembly and disassembly
Solution Approach 1:
The latch mechanism transitions from a static plastic feature to a dynamic system with movable latches that can be actuated. The latches are biased by springs to engage with the housing, but can be actively released by moving the actuator, allowing easy removal while maintaining secure retention during operation
Solution Approach 2:
The latch mechanism uses spring bias to automatically engage and secure the outlet module in the housing without requiring additional fastening steps. The system self-secures upon insertion and can be self-released by actuating the release mechanism
2Reliability
If conventional latches are used to secure the outlet module, then the module is retained in the housing, but the latches add complexity and cost to the tooling used to injection mold the module components
Solution Approach 1:
Multiple latch functions are combined into a single integrated mechanism. The actuator controls both latches simultaneously through a common link, reducing the number of separate components and simplifying the injection molding process while maintaining secure retention
Solution Approach 2:
The actuator serves multiple functions: it moves the link which simultaneously controls both latches, providing both retention and release capabilities through a single component. This multi-functionality reduces overall mechanism complexity
Data Source
AI summary
An outlet module mounting mechanism for use with a power distribution unit including: a bracket attachable to an outlet module; a latch movably coupled to the bracket, wherein the latch has a proximal end portion and a distal end portion; a link coupled to the proximal end portion of the latch; and a plunger connected to the link and movable between a released position and a latched position. When the plunger is moved to the latched position the plunger moves the link away from a front side of the outlet module such that the distal end portion of the at least one latch moves toward the front side of the outlet module to engage a corresponding wall of the housing thereby securing the outlet module to the housing.