SSD Casing Recess Layout for Compact Electrolytic Capacitors
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Solution Overview
Problem
Solid state hard disks face challenges in meeting external dimension standards, standby power supply capacity, and cost requirements, particularly with the use of electrolytic capacitors, which occupy more space due to their larger number needed to match the power capacity of supercapacitors, and require effective heat dissipation for variously sized electronic components.
Innovation Solution
The design of a solid state hard disk casing with recesses and protrusions to accommodate electrolytic capacitors efficiently, allowing for multiple capacitors to be placed in a compact form while ensuring heat dissipation through strategic placement and air channels, accommodating different electronic component sizes and shapes, and allowing for the assembly of various solid state hard disk specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If electrolytic capacitors are used instead of supercapacitors to reduce cost, then cost is reduced, but the space occupied by capacitors increases
Solution Approach 1:
The patent transitions from planar capacitor arrangement to three-dimensional stacked arrangement. The upper casing and lower casing form vertical layers, with capacitors arranged in the thickness direction (7mm or 7.5mm). This dimensional change allows multiple capacitors to be stacked vertically, significantly reducing the footprint area while maintaining total capacitance capacity.
Solution Approach 2:
The patent implements nested arrangement where capacitors are positioned within the vertical space between upper and lower casings. The first capacitor is arranged in the first cavity, and the second capacitor is arranged in the second cavity, with both capacitors nested within the overall housing volume. This nested structure maximizes space utilization within the constrained thickness dimension.
2Reliability
If more electrolytic capacitors are placed to provide sufficient standby power capacity, then standby power capacity is improved, but the device thickness increases
Solution Approach 1:
The patent exploits the thickness dimension (7mm or 7.5mm standard) by arranging capacitors vertically between upper and lower casings. Multiple capacitors are stacked in the thickness direction rather than spreading them horizontally, allowing sufficient capacitance to be achieved within the constrained thickness limit of enterprise solid state hard disk standards.
Solution Approach 2:
The patent divides the capacitor arrangement into multiple segments: first cavity for first capacitor, second cavity for second capacitor. This segmentation allows the total capacitance to be distributed across multiple smaller units stacked vertically, achieving the required standby power capacity without exceeding the overall thickness constraint.
3Adaptability or versatility
If the housing structure is redesigned to accommodate multiple capacitor types and sizes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The housing structure with upper and lower casings serves multiple functions simultaneously: it provides mechanical protection, defines the 7mm/7.5mm thickness boundary, creates stacked cavities for capacitor arrangement, and enables heat dissipation pathways. This multi-functional design achieves high adaptability for different capacitor configurations without proportionally increasing complexity.
Solution Approach 2:
The housing is segmented into upper casing and lower casing with distinct cavities (first cavity, second cavity) for different capacitor placements. This segmentation allows flexible accommodation of various capacitor types and sizes in different positions, while each segment remains relatively simple in structure, avoiding overall complexity escalation.
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 solution effectively meets the external dimension standards, provides a sufficient standby power supply capacity using commercially available capacitors, reduces costs, and ensures effective heat dissipation for different electronic components, enabling the casing to accommodate various solid state hard disk specifications.
Implementation Method 1
a solid state hard disk housing needs to be in sufficient (close) contact with electronic components on a circuit board it accommodates, so as to conduct heat produced by the electronic components to the outside of the housing
Data Source
AI summary
A solid state hard disk casing, including: an upper casing and a lower casing fastened to each other, wherein a first lower recess is provided on a side of an inner surface of the lower casing close to one long edge of the lower casing, to accommodate a first portion of one or multiple electrolytic capacitors; a first upper recess is provided on a side of an inner surface of the upper casing close to one long edge of the upper casing, and the first upper recess is opposite to the first lower recess, to accommodate a second portion of the electrolytic capacitor placed in the first lower recess; and a side of the inner surface of the lower casing close to the other long edge of the lower casing is configured to fix a circuit board connected to the electrolytic capacitor.