Server Riser Card Assembly With Interlocked GPU Tray Removal
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Solution Overview
Problem
The challenge of preventing damage to connectors on display and riser cards when the riser card is removed before the display card in a server chassis due to their different mounting directions.
Innovation Solution
A restriction cover is designed to cover the handheld part of the riser card assembly's handle, preventing it from rotating and sliding relative to the chassis, ensuring the riser card cannot be removed until the display card is also removed, thereby protecting the connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the riser card and display card are mounted in different directions to improve space utilization, then space utilization is improved, but the risk of connector damage increases when removal sequence is incorrect
Solution Approach 1:
A restriction cover is introduced as an intermediary component that physically blocks the handle of the riser card assembly when the display card is installed. This mediator prevents direct access to the handle, ensuring that the riser card cannot be removed before the display card, thus protecting the connectors from damage while maintaining the space-efficient perpendicular mounting arrangement
2Ease of operation
If the riser card assembly is designed with a handle for easy removal, then ease of operation is improved, but the risk of accidental removal before display card increases
Solution Approach 1:
The restriction cover dynamically changes the accessibility of the handle based on the installation state. When the display card is installed, the restriction cover is in position to block the handle. When the display card is removed, the restriction cover can be moved to allow handle access. This dynamic behavior allows easy operation when safe, while preventing accidental removal when dangerous
Data Source
AI summary
An electronic assembly and a chassis assembly, wherein the electronic assembly comprises a chassis, a riser card assembly, and a display card assembly. The riser card assembly comprises an assembly bracket and a riser card. The assembly bracket comprises a bracket body and a handle including two mount parts and a handheld part. The riser card is disposed on the bracket body. The display card assembly comprises a tray, a display card and a restriction cover. The display card is disposed on the tray and electrically connected to the riser card. The restriction cover is disposed on a side of the tray. The bracket body and the tray are slidably disposed on the chassis along different directions. When the tray is mounted on the chassis, the restriction cover covers the handheld part, thereby preventing the handle from allowing the bracket body to slide relative to the chassis.