SSD PCBA Damper Structure for Shock and Solder Joint Protection
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Solution Overview
Problem
Solid state drives (SSDs) fail when exposed to gravitational forces due to shock impulses that cause stress and deflection of the printed circuit board assembly (PCBA), potentially breaking solder joints and leading to data loss.
Innovation Solution
Incorporating a damper that contacts the PCBA and its enclosure to absorb shock impulses, eliminating the need for screws and allowing for easier assembly and increased space on the PCB by applying a spring force to the PCB's sides and edges, thereby reducing deflection and stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the PCBA is rigidly fastened to the enclosure using screws, then the structural strength and stability are improved, but the shock impulses are absorbed by the PCBA causing deflection and stress that can break solder joints
Solution Approach 1:
A damper is introduced as an intermediary component between the PCBA and the enclosure. The damper contacts the PCBA and the enclosure, absorbing shock impulses and preventing them from being transmitted to the PCBA. This mediator protects the PCBA from shock while maintaining structural integrity.
Solution Approach 2:
The damper provides pre-positioned cushioning support between the PCBA and the enclosure. By placing the damper in advance during assembly, it creates a protective buffer that absorbs shock impulses before they can reach the PCBA, preventing deflection and stress on solder joints.
2Stability of the object's composition
If screws are used to fasten the PCBA to the enclosure, then the structural stability is improved, but the assembly complexity and manufacturing cost increase
Solution Approach 1:
The screw fastening mechanism is extracted and replaced with a damper-based retention system. The damper is positioned to contact the PCBA and enclosure, providing both shock absorption and mechanical retention without requiring screws, holes, or complex fastening operations.
Solution Approach 2:
The damper serves multiple functions simultaneously: it acts as a shock absorber, a structural support, and a retention mechanism. This multi-functional component replaces the traditional screw fastening system, simplifying the overall assembly while maintaining stability.
3Strength
If screw openings are provided on the PCB for fastening, then the structural strength is improved, but the available space for components is reduced
Solution Approach 1:
The screw openings and fastening holes are extracted from the PCB design. The damper-based system eliminates the need for holes in the PCB, preserving the full surface area for component placement while providing equivalent or superior structural support.
Solution Approach 2:
The damper acts as a flexible or compliant element that can deform under load, distributing forces across the PCBA edges or corners without requiring rigid fastening holes. This allows the PCB to maintain its full structural integrity and component space.
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 damper effectively reduces shock impulses received by the PCBA, preventing deflection and potential damage, simplifies assembly, and reduces the SSD's size and cost by eliminating screw openings.
Implementation Method 1
applying a spring force to the PCB's sides and edges, thereby reducing deflection and stress
Implementation Method 2
a damper configured to contact the PCBA, contact an enclosure of the SSD, and damp shock impulses applied to the SSD
Data Source
AI summary
Apparatuses, systems, and methods for a damper for a printed circuit board assembly (PCBA). One example apparatus can include a PCBA of a solid state drive (SSD) and a damper configured to contact the PCBA, contact an enclosure of the SSD, and damp shock impulses applied to the SSD.