Server Frame Module with Sliding Fastening for Variable-Length Cards
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Solution Overview
Problem
Conventional expansion function module frames are limited in securing expansion cards of specific lengths, prone to detachment due to vibrations, block connector cables, and require complex alignment and screw fixation, which can damage components.
Innovation Solution
A frame module with a detachable design featuring a main frame, riser card, and a slidable fastening assembly that secures expansion cards of different lengths by using engagement recessed portions and block portions to clamp the cards in place, avoiding interference with connector cables and simplifying installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal extension components are used to fix expansion cards, then expansion cards of specific lengths can be secured, but expansion cards are prone to detach due to dropping or vibration and screws may block connector cable installation
Solution Approach 1:
The patent employs a slidable fastening assembly with block portions that can move along the first plate to adapt to different expansion card lengths. The fastening assembly transitions between a fastening position (where block portions press against engagement recessed portions) and a releasing position, providing dynamic adjustment capability while maintaining reliable fixation for various card types.
Solution Approach 2:
The frame module is divided into distinct functional components: a main frame with first and second plates, a riser card with connection slots, and a separate fastening assembly with block portions. This segmentation allows the fastening mechanism to be independently positioned and adjusted, enabling it to secure expansion cards of different lengths without interfering with connector cables.
2Ease of manufacture
If floating screws are used to fix the frame module to the motherboard, then the frame module can be attached, but alignment is difficult and additional screw holes increase wiring design limitations
Solution Approach 1:
The patent incorporates guiding structures (guiding grooves or positioning protrusions) on the first plate that engage with corresponding structures on the motherboard before the fastening screws are fully tightened. This preliminary guiding action automatically aligns the frame module with the motherboard, eliminating the need for manual alignment and reducing the risk of misalignment damage.
3Productivity
If users directly pull the expansion function module without removing floating screws, then removal can be quick, but damage to the frame module may occur
Solution Approach 1:
The fastening assembly incorporates a self-locking or self-indicating mechanism where the block portions or fastening structure provide visual or tactile feedback when properly engaged. This self-service feature reminds users to release the fastening mechanism before removal, preventing accidental damage while enabling quick removal when properly executed.
Data Source
AI summary
A frame module is configured to be detachably disposed on a casing of a server and configured to secure an expansion card. One side of the expansion card includes an electrical connector portion and an engagement recessed portion arranged adjacent to each other. The frame module includes a main frame, a riser card and a fastening assembly. The main frame includes a first plate and a second plate connected to each other. The riser card is disposed on the first plate and includes a connection slot configured for the electrical connector portion to be inserted to. The fastening assembly is slidably disposed on the first plate and includes a block portion. When the fastening assembly is in a fastening position, the block portion presses against the engagement recessed portion. When the fastening assembly is in a releasing position, the block portion is removed from the engagement recessed portion.