Modular Flash Memory Expansion System With Guided Rails
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Solution Overview
Problem
Conventional flash memory card systems face challenges with terminal damage and lack of expandability due to the design, where memory cards can bend or get damaged when inserted, and there is no effective mechanism to securely lock the cards in place.
Innovation Solution
A modular flash memory card expansion system featuring guided rails, a latch system, and a space-saving module with multiple layers of pins that securely hold and electrically connect flash memory cards, preventing damage and allowing for easy expansion and secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If memory cards are inserted between terminal rows in a stackable connector, then memory capacity can be expanded, but terminals may be damaged or bent
Solution Approach 1:
The patent transitions from a 2D terminal arrangement to a 3D stacked connector design with multiple terminal rows positioned vertically. Memory cards are inserted between these rows, utilizing the third dimension to accommodate multiple cards while maintaining terminal protection through proper spacing and structural support.
Solution Approach 2:
The patent introduces protective structures as intermediaries between the memory cards and terminals. These include terminal protection elements and structural features that prevent direct contact between the cards and terminals, thereby preventing damage while allowing electrical connection.
2Volume of moving object
If a stackable connector is designed with reduced thickness, then device compactness is improved, but there is no effective mechanism to lock memory cards in place
Solution Approach 1:
The patent incorporates dynamic locking mechanisms that engage when memory cards are inserted. These include movable latch elements and snap-fit features that transition from an open to closed state, securing the cards in place while maintaining a compact overall connector structure.
Solution Approach 2:
The patent implements nested locking structures where latch elements are positioned within the connector housing and engage with corresponding features on the memory cards. This nested arrangement provides secure retention without increasing the external dimensions of the connector.
3Reliability
If flash memory is soldered onto PCB, then connection stability is improved, but design flexibility and expandability are reduced
Solution Approach 1:
The patent divides the memory system into separate modular components: the PCB with controller, the stackable connector, and removable memory cards. This segmentation maintains stable electrical connections through the connector design while enabling easy expansion by simply adding or removing cards without reworking the PCB.
Solution Approach 2:
The patent creates a universal connector design that can accommodate multiple types of memory cards through standardized interfaces and adaptive terminal arrangements. This multi-functional connector provides both stable connection and expandability by supporting various card formats in the same stackable structure.
Data Source
AI summary
A memory card system is disclosed. The memory card system comprises at least one flash memory card and a module for holding the at least one memory card. The module comprises a plurality of supports. The supports include rails to guide the at least one memory card in place and a latch system for securing the at least one memory card to the module. The memory card system includes at least one layer of pins coupled to module and a controller coupled to the module. The module electrically connects the at least one layer of pins to the controller. The present invention provides a modular flash memory card expansion system using any standard Secure Digital card; the flash memory card can be any flash-based memory card, such as SD, Compact Flash (CF), MMC, Memory Stick or others.