Riser Card Linkage Mechanism for Low-Force Insertion
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Solution Overview
Problem
Conventional riser cards are difficult to insert and detach from motherboards due to their long design, which leads to oblique angled installations and excessive plugging force, causing user inconvenience and potential damage to the card pin during assembly and disassembly.
Innovation Solution
A riser card with a linkage mechanism and handle bar design that uses parallelogram linkages and support pillars to generate lever torques, allowing for easy insertion and removal by pressing or pulling the handle bar, preventing oblique installations and reducing plugging force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the riser card has a long main body to accommodate multiple interface cards, then the space utilization is improved, but the insertion and detachment difficulty increases due to oblique angled installation and excessive plugging force
Solution Approach 1:
The patent applies dynamics by making the handle bar movable relative to the main body through linkage mechanisms. The handle bar can swing between a non-pressed position (forming an angle with the main body) and a pressed position (substantially collinear with the main body), allowing the system to transition between different states to facilitate easy insertion and detachment while maintaining the long main body structure for space utilization
2Adaptability or versatility
If the riser card has a long main body design, then multiple interface cards can be installed, but the card pin may damage easily due to excessive plugging force during installation
Solution Approach 1:
The patent uses linkage mechanisms as intermediaries between the handle bar and the main body. When the handle bar is pressed, the linkage mechanisms (including linkages, bridge sheets, and limiting pillars) transmit and distribute the force evenly, preventing excessive concentrated force on the card pin while still enabling insertion of the long main body with multiple interface cards
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 design significantly improves the convenience and efficiency of assembling and disassembling the riser card, reducing the risk of damage to the card pin by distributing force evenly and guiding precise alignment.
Implementation Method 1
the first recessed end portion and the second recessed end portion abut against the first support pillar and the second support pillar respectively to move and rotate for generating lever torques to insert the card pin into the at least one slot
Data Source
AI summary
A riser card is used for inserting into a motherboard module including a casing and a motherboard disposed in the casing, and includes a handle bar, a main body and first and second linkage mechanisms pivoted to the main body. A side wall of the casing corresponding to a slot of the motherboard has first and second support pillars. The handle bar moves between non-pressed and pressed positions with swinging of the first and second linkage mechanisms. When the first and second linkage mechanisms are supported by the first and second support pillars and the handle bar is pressed to the pressed position, the handle bar is collinear with the first and second linkage mechanisms, and the first and second linkage mechanisms abut against the first and second support pillars to move and rotate for generating lever torques to insert a card pin of the riser card into the slot.