PCB Carrier Frame With Tool-Less Post-and-Slot Mounting
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Solution Overview
Problem
Existing information handling systems face challenges in efficiently and easily upgrading or replacing components such as motherboards, storage devices, and thermal solutions without modifying the chassis, and there is a need for a secure and tool-less attachment mechanism for carrier frames within these systems.
Innovation Solution
A carrier frame with a main portion and wing portions, featuring mounting components that securely and removably connect to the system chassis using post and slot mounting components, allowing for tool-less assembly and disassembly, and incorporating customizable thermal solutions and protective shields for component security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mounting methods are used to attach components to the chassis, then secure component attachment is achieved, but component replacement and upgrading require chassis modification and tools
Solution Approach 1:
The mounting system is divided into separate carrier frame and chassis components with standardized mounting components (posts and slots) that enable tool-less attachment and detachment. The carrier frame segments the motherboard and components from the chassis, allowing independent replacement without modifying the chassis structure.
Solution Approach 2:
The mounting system transitions from fixed permanent attachment to a dynamic reversible connection using snap-fit mounting components. The posts and slots enable the carrier frame to be easily inserted and secured, then later removed and repositioned for component upgrading or replacement.
2Productivity
If custom mounting solutions are designed for each component upgrade, then secure attachment is achieved, but assembly complexity and time increase
Solution Approach 1:
The mounting system uses universal posts and slots that can accommodate multiple different components and carrier frame configurations. The standardized mounting interface allows the same basic structure to support various motherboard sizes and component arrangements, eliminating the need for custom mounting solutions for each upgrade scenario.
Solution Approach 2:
The carrier frame is pre-assembled with the motherboard and components attached before insertion into the chassis. The mounting components are pre-positioned on the carrier frame, allowing for tool-less snap-fit attachment to the chassis without requiring complex assembly procedures during the upgrade process.
3Ease of operation
If the carrier frame uses complex mounting mechanisms, then secure and tool-less attachment is achieved, but the structure becomes more complex
Solution Approach 1:
The mounting components are designed to be self-aligning and self-securing. The posts feature tapered surfaces that guide them into the slots during insertion, and the snap-fit mechanism automatically locks when engaged, eliminating the need for tools or complex adjustment procedures. The system serves itself by providing inherent alignment and securing features.
Data Source
AI summary
A printed circuit board assembly for an information handling system includes a carrier frame. The carrier frame to hold a system motherboard and other components. The carrier frame includes a main portion, first and second wing portions, and multiple mounting components. The main portion has a top surface and a bottom surface. The first and second wing portions extend from opposite ends of the main portion. The first and second wing portions have the top surface and the bottom surface. The system motherboard and the other components are in physical communication with the top surface. The mounting components extend from the bottom surface and securely and removably connect the carrier frame within the information handling system.