Slidably Pluggable Multi-Fan Module for Front-Panel Maintenance
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Solution Overview
Problem
Existing middle-mounted fan architectures in data center servers require cumbersome maintenance procedures, often necessitating the removal of the entire case for fan replacement and not supporting thermal maintenance without power cutoff, leading to inefficient service operations.
Innovation Solution
A slidably pluggable multi-fan module with an outer fan module frame, sliding rail, chain bracket, and push-pull frame that allows for direct front panel maintenance, enabling simultaneous insertion and removal of multiple fans without disrupting the server's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If middle-mounted fan architecture is used to meet close storage and computation requirements, then storage and computation density is improved, but maintenance complexity increases and thermal maintenance capability is lost
Solution Approach 1:
The fan module is segmented from the server case, allowing the fan module to be independently removed and installed through the front panel without affecting the server case structure. This segmentation enables thermal maintenance capability while preserving the middle-mounted fan architecture's high density benefits.
Solution Approach 2:
A guiding rail structure is introduced as an intermediary mechanism between the fan module and server case. The guiding rail facilitates the smooth insertion and removal of the fan module through the front panel, enabling easy maintenance operation without requiring case disassembly.
2Ease of repair
If case is pulled out or removed from guiding rail for fan maintenance, then fan accessibility is improved, but service continuity is worsened
Solution Approach 1:
The fan module is extracted as an independent serviceable unit that can be removed through the front panel without removing the entire server case. This extraction allows maintenance personnel to access and replace fans quickly while the server remains installed in the data center, minimizing downtime.
Solution Approach 2:
The fan module transitions from a fixed state within the case to a dynamically removable state through the guiding rail mechanism. This dynamic design allows the fan module to be easily inserted and removed for maintenance while maintaining stable operation during normal use.
3Ease of operation
If SR950 fan architecture is used to support front-end maintenance, then maintenance capability is improved, but module scalability is worsened as only single fan independent plugging is supported
Solution Approach 1:
Multiple fan brackets are merged into a single chain bracket structure that can be controlled as one unit. This merging enables the entire fan module to be inserted and removed simultaneously through the front panel, providing both front-end maintenance capability and scalable multi-fan replacement ability.
Solution Approach 2:
The chain bracket structure serves multiple functions: it holds multiple fans, enables unified insertion/removal operation, and maintains compatibility with the guiding rail system. This universal design allows the same mechanism to support various fan configurations and maintenance scenarios.
Data Source
AI summary
A slidably pluggable multi-fan module comprises: an outer fan module frame, a sliding rail, a chain bracket, a plurality of fans, and a push-pull frame. The outer fan module frame includes a bottom plate; the sliding rail is arranged on the bottom plate of the outer fan module frame; the chain bracket is composed of a plurality of fan brackets hinged to each other; a limiting rod matched with the sliding rail is arranged at a bottom of each fan bracket and slidable along the sliding rail; and one end of the push-pull frame is hinged to a fan bracket. The outer fan module frame of the slidably pluggable multi-fan module supports front panel maintenance; the chain bracket forms an opening and closing structure; and a bottom of the chain bracket cooperates with the sliding rail to achieve the design of a movement trajectory of the fans.