Docking Shell for Electronic Equipment Vibration Damping
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Solution Overview
Problem
Modern locomotives face challenges in securing electronic equipment, such as solid-state drives, due to high-vibration environments and extreme temperatures, which complicates easy removal and secure connection, particularly with SATA interfaces prone to fretting corrosion and electrostatic discharge.
Innovation Solution
A system comprising a shell with a mating portion for an electronic device, removably secured within a dock with a damping mechanism, alignment features, and a gasket to reduce vibratory forces and ensure secure electrical communication, including a SATA connector system with locator pins and guides for proper alignment and secure mating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device is securely fixed in the dock, then the connection reliability is improved, but the ease of removal deteriorates
Solution Approach 1:
The device is segmented into a removable shell unit containing the electronic device and a stationary dock. This segmentation allows the shell to be easily detached from the dock while maintaining secure connections during operation. The shell can be removed without tools by pressing release lugs, providing easy removal while maintaining connection reliability when installed.
Solution Approach 2:
The connection mechanism transitions from a static fixed connection to a dynamic removable connection. The shell includes release lugs that can be actuated to detach from the dock, and retention lugs that automatically engage when the shell is inserted. This dynamic mechanism provides both secure connection during operation and easy removal when needed.
2Ease of operation
If the mating portions are exposed for easy access, then the ease of operation is improved, but the protection against vibration and electrostatic discharge deteriorates
Solution Approach 1:
The mating portions are nested within the shell housing rather than being fully exposed. The shell encloses the electronic device and mating portions, providing protection against vibration and electrostatic discharge. The shell includes an opening that allows access to the mating portions when needed, combining protection with ease of access.
Solution Approach 2:
The shell acts as a protective enclosure that can be opened to access mating portions. This flexible approach allows the shell to provide protection when closed while enabling easy access to connectors when opened, resolving the contradiction between protection and accessibility.
3Reliability
If the mating portions are tightly secured to prevent fretting corrosion, then the reliability is improved, but the ease of removal deteriorates
Solution Approach 1:
The shell acts as an intermediary component between the electronic device and the dock. It provides a protected environment for the mating portions while enabling easy removal through the release mechanism. The shell's opening allows access to mating portions for connection/disconnection operations while maintaining protection during operation.
4Manufacturing precision
If alignment features are added to ensure proper mating alignment, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The alignment features utilize asymmetric geometries such as offset locator holes and non-symmetric guide structures. These asymmetric features provide precise alignment guidance during insertion while being simple to manufacture. The asymmetry ensures proper mating alignment without requiring complex alignment mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a secure, easy-to-use, and tamper-resistant solution for electronic equipment in high-vibration environments, reducing the risk of fretting corrosion and electrostatic damage while allowing quick tool-less insertion and removal.
Implementation Method 1
a damping mechanism to reduce vibratory forces on the first and second mating portions and relative movement between the portions
Data Source
AI summary
An apparatus for securing electronic equipment. The apparatus includes an electronic device having a first mating portion. The device is removably secured within a shell, which has an open end allowing access to the first mating portion. The apparatus further includes a dock having a second mating portion and an output connector in electrical communication with the second mating portion. The dock removably receives the shell to facilitate electrical communication between the first and second mating portions. The output connector facilitates electrical communication between the electronic device and a device external to the dock. The apparatus also includes a damping mechanism to reduce vibratory forces on the first and second mating portions and relative movement between the portions.