Rack Locking Assembly Key Mechanism

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Solution Overview

Problem

Existing power distribution modules in data centers can be inadvertently removed or installed while powered on, posing a risk of disruption to continuous operation, as existing solutions rely on operator adherence to warning messages in manuals rather than mechanical enforcement.

Innovation Solution

A locking assembly with a snap-fit configuration and key-based mechanism is used to secure power distribution modules within a rack enclosure, preventing removal or installation while powered on, and ensuring proper procedures are followed by requiring a special key for unlocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking assembly is added to prevent module removal, then safety and reliability are improved, but device complexity increases

Engineering Contradiction:
Improveprevention of unauthorized module removalVSAvoidlocking assembly structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking assembly is divided into separate functional components: a lock body that engages with the module, a key for unlocking, and integration with the existing rack chassis. This segmentation allows each component to perform its specific function while keeping the overall system manageable and not overly complex.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lock acts as an intermediary mechanism between the operator and the power distribution module. It provides a controlled interface that requires authentication (key) before allowing module removal, thereby preventing unauthorized access without requiring complex monitoring or control systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a key-based locking mechanism is implemented, then security is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvesecurity of module installationVSAvoidmodule installation and removal process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism is designed to be self-contained and self-explanatory. The key physically engages with the lock body in a straightforward manner, and the locking action automatically engages when the module is inserted into the rack slot, eliminating the need for complex procedures or additional steps.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2876982B1Locking assembly for securing electronic equipment within an equipment rack
Publication Date: 2018.04.25 SCHNEIDER ELECTRIC IT CORP
  • EP2876982B1 patent drawingFigure 1~3
  • EP2876982B1 patent drawingFigure 4
  • EP2876982B1 patent drawingFigure 5

AI summary

A locking assembly is provided for securing an electronic module to a chassis of a rack enclosure within a mounting slot of the chassis. The locking assembly includes a lock configured to be secured to a vertical rail of the chassis. The lock further is configured to prevent the electronic module from being slidably installed into and removed from its respective mounting slot and to prevent a latch of the electronic module from being opened when the electronic module is secured in place within the chassis of the rack enclosure. The locking assembly further includes a key configured to enable the lock to be removed from the chassis thereby enabling the installation and removal of the electronic module from the chassis.