Pluggable Module Single Sliding Latching Mechanism
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Solution Overview
Problem
Conventional pluggable modules with latching mechanisms require complex assembly processes, tight manufacturing tolerances, and thicker components, leading to increased costs and reduced PCB area, compromising both manufacturing efficiency and performance.
Innovation Solution
A pluggable module design featuring a single sliding portion with wedge-shaped latching protrusions and a one-piece actuating mechanism, integrated within the housing, simplifying the manufacturing process and increasing the PCB area by eliminating the need for two sliding arms and their tracks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two sliding arms with tracks are used in the latching mechanism, then reliable latching is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges two separate sliding arms into a single integrated sliding component with two sliding portions. This single component includes two sliding legs that respectively engage with two tracks on the housing, eliminating the need for separate arms while maintaining the dual-track latching reliability. The merging reduces part count, simplifies assembly, and lowers manufacturing complexity while preserving the stable latching function.
2Strength
If sliding arms are made thicker for rigidity, then structural strength is improved, but PCB area inside the housing decreases
Solution Approach 1:
By merging two thick sliding arms into a single integrated sliding component, the patent achieves structural rigidity through the combined design rather than relying on individual arm thickness. The single component structure with two sliding legs provides sufficient strength while occupying less overall space, thereby increasing the available PCB area inside the housing.
Solution Approach 2:
The patent redistributes the structural strength requirement from the thickness dimension to the spatial arrangement dimension. The sliding legs are positioned to engage with tracks on opposite sides of the housing, creating a distributed structural system that achieves rigidity through geometric configuration rather than increased material thickness, thus preserving PCB area.
3Area of stationary object
If thinner sliding arms are used to increase PCB area, then more space is available, but manufacturing quality and track accommodation become difficult
Solution Approach 1:
The integration of two sliding arms into a single component with two legs allows for better manufacturing control. The unified structure can be produced as one piece using die-casting or injection molding, ensuring consistent thickness and geometry throughout. This single-component approach simplifies quality control compared to assembling or precisely matching two separate thin arms, while still achieving the space savings of thinner profiles.
Data Source
AI summary
A pluggable module includes a base, a cover assembled with the base to form a housing and a latching mechanism at least partially disposed within the housing. The latching mechanism includes an actuating portion and a single sliding portion which is connected with the actuating portion and disposed within the housing, the single sliding portion including a flat board and two sliding legs respectively extending from two opposite sides of the flat board, each sliding leg having a latching protrusion formed thereon and exposed outside the housing for latching with and detaching from the cage. The present invention uses a single sliding portion to replace two sliding arms thereby simplifying the manufacturing and assembling process, in turn, reducing the manufacturing and assembling cost.