Server Power Clamp Depth Detection for Safe Hot-Swap
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Solution Overview
Problem
The current centralized power supply systems for servers face issues with component damage and safety hazards during the power-on process due to incomplete contact between the power clamp and the power output end, leading to heating and potential damage to both server and cabinet components.
Innovation Solution
A control device incorporating a depth detection module and a signal transmission circuit that outputs state signals to prevent the hot-swap control module from starting until complete connection is ensured, using a travel switch and field effect transistors to manage power-on and power-off processes safely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the hot-swap control module starts immediately when the server is plugged in, then the power-on speed is improved, but component damage may occur due to incomplete contact between power clamp and power output end
Solution Approach 1:
The patent applies preliminary action by detecting the connection state of the power clamp before enabling the hot-swap control module. The depth detection module checks whether the power clamp is completely connected to the power output end, and only after confirming complete connection does the system enable the hot-swap control module to start. This prevents component damage while maintaining efficient hot-swap functionality.
2Device complexity
If the power clamp is not completely connected but power-on is attempted, then the power-on process is simplified, but heating and component damage occur due to large contact impedance
Solution Approach 1:
The patent introduces an intermediary depth detection module that mediates between the power connection state and the hot-swap control module operation. This module detects whether the power clamp is completely connected and uses this information to control the enabling of the hot-swap control module, thereby preventing heating and component damage without complicating the overall power-on process.
3Reliability
If a depth detection mechanism is added to prevent incomplete contact, then component safety is improved, but device complexity increases
Solution Approach 1:
The patent applies self-service by using the existing mechanical connection structure itself to provide the detection function. The depth detection module utilizes the physical state of the power clamp connection (complete or incomplete) to automatically determine whether to enable the hot-swap control module, without requiring external complex control systems or additional sensors beyond what is already integrated into the power supply architecture.
Data Source
AI summary
A control device for centralized power supply of a server includes a depth detection module provided on a centralized power supply board of a cabinet, and a signal transmission circuit. The depth detection module outputs a first state signal to enable the signal transmission circuit to output a disable signal when a power clamp of a server is not completely connected to a power output end, so as to prevent a hot-swap control module from being started. The depth detection module outputs a second state signal to enable the signal transmission circuit to output an enable signal when the power clamp is completely connected to the power output end, so as to start the hot-swap control module. Thus, the hot-swap control module cannot be powered on when the power clamp of the server is not in complete contact with the power output end of the centralized power supply board.