Two-Stage Interface Card Fastening for Space-Constrained Notebooks
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Solution Overview
Problem
The limited internal space in notebook computers restricts the vertical assembly of motherboards and interface cards, making it challenging to effectively utilize available space for installing multiple interface cards.
Innovation Solution
A two-stage fixing device with a seat body and positioning fastener, featuring elastic members and a buckle mechanism, allows for the rotation and firm fixation of interface cards, enabling rapid positioning and disassembly by elastic deformation, thereby optimizing the use of space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If interface cards are installed vertically like personal computers, then more interface cards can be installed, but the internal space limitation of notebook computers prevents this assembly method
Solution Approach 1:
The patent changes the installation dimension from vertical (like PC) to a horizontal/layered configuration within the notebook's constrained space. The base structure with side plates and positioning bodies creates a new spatial arrangement that accommodates multiple interface cards in the limited internal volume by utilizing different dimensional orientations rather than simple vertical stacking.
Solution Approach 2:
The interface cards are nested within the base structure formed by side plates and positioning bodies. The first and second interface cards are positioned at different levels (first above the second), creating a nested arrangement that maximizes space utilization within the confined notebook internal space while maintaining accessibility and functionality.
2Quantity of substance
If multiple interface cards are installed in limited space, then space utilization improves, but the assembly and disassembly process becomes complex and time-consuming
Solution Approach 1:
The positioning bodies are pre-configured with positioning portions that automatically engage with corresponding portions on the interface cards during insertion. The elastic members are pre-loaded to provide automatic clamping force. This preliminary configuration of positioning and fastening mechanisms eliminates the need for manual adjustment or complex fastening operations during assembly and disassembly, reducing time loss despite handling multiple cards.
Solution Approach 2:
The elastic members provide dynamic, self-adjusting clamping force that automatically engages and disengages with the interface cards. When interface cards are inserted or removed, the elastic members dynamically adjust their deformation state to maintain proper positioning during assembly and facilitate quick release during disassembly, making the process efficient despite multiple components.
3Reliability
If interface cards are firmly fixed to ensure stability, then positioning reliability improves, but the disassembly process becomes difficult and time-consuming
Solution Approach 1:
The elastic members create a dynamic fastening system that provides strong clamping force for stable positioning during normal operation, yet allows for easy disassembly when needed. The elastic deformation capability enables the members to exert sufficient force for firm fixation while permitting controlled release when disassembly is required, balancing reliability with operational ease.
Solution Approach 2:
The positioning and fastening functions are segmented into separate components: positioning bodies for precise location, elastic members for clamping force, and side plates for structural support. This segmentation allows each component to perform its specific function optimally - ensuring stable positioning through the positioning bodies while enabling easy disassembly by simply releasing the elastic member constraint.
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
Enables efficient and rapid positioning and disassembly of multiple interface cards, enhancing the configuration flexibility within the limited space of notebook computers.
Implementation Method 1
a first elastic member and a second elastic member loaded on the base can be elastically deformed to recede and tilt up
Implementation Method 2
a preset first interface card and a preset second interface card, which are plugged into respective preset electrical connectors, can be rotated and resisted, and then firmly fixed on the base
Data Source
AI summary
A two-stage fixing device includes a seat body mounted on a preset circuit board, and a positioning fastener having a base positioned on the seat body. The base has an integrated first positioning body and second positioning body, which are used for the preset first interface card and preset second interface card plugged into respective preset electrical connectors to be rotated and resisted, and then firmly fixed on the base. By moving the base and an operating portion of a buckle member of the positioning fastener, a first elastic member and a second elastic member loaded on the base can be elastically deformed to recede and tilt up, so that the preset first and second interface cards can be separated from the positioning fastener to achieve rapid positioning and disassembly of multiple interface cards of the present invention.