Handle Locking Mechanism for Server Ejection

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Solution Overview

Problem

Conventional locking mechanisms for servers in blade or rack servers require significant effort and time for locking and unlocking, making maintenance and replacement cumbersome, and often necessitate additional tools.

Innovation Solution

A handle locking device with a swinging bracket, activation bracket, and handle that allows for easy locking and unlocking by rotating the handle, utilizing an elastic restoring component to facilitate the hook's movement between locking and unlocking positions, enabling manual operation without additional tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional locking mechanisms like screws are used, then the server can be securely locked to the shelf, but the locking and unlocking process takes significant time and effort

Engineering Contradiction:

Improvelocking securityVSAvoidlocking and unlocking time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The locking mechanism transitions from a static screw-based system to a dynamic handle-driven system. The handle can be rotated to automatically engage or disengage the locking state, enabling quick transitions between locked and unlocked positions without manual screw operations.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent replaces the traditional screw-thread mechanical system with a handle-actuated linkage system. Rotating the handle triggers a mechanical transmission mechanism that moves the locking component, substituting complex screw operations with a simpler rotational motion.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If conventional locking mechanisms are used, then the server can be locked securely, but additional tools are required for locking and unlocking operations

Engineering Contradiction:

Improvelocking securityVSAvoidoperation simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The handle locking device is designed to be self-operating. The handle itself serves as both the operating interface and the actuating mechanism. When rotated, it automatically engages the locking or unlocking function without requiring external tools or separate operating procedures.

Inventive Principle:

Principle #25Self-service

3Stability of the object's composition

If servers are locked securely to the shelf, then stability is improved, but ejecting the server requires overcoming significant connector resistance

Engineering Contradiction:

Improveserver stability on shelfVSAvoidejection force required

Core Design Contradiction:

Stability of the object's compositionVSForce

Solution Approach 1:

The locking function is segmented from the connector function. The locking mechanism independently secures the server case to the shelf, while the connectors remain separate. This allows the locking to provide stability without the connectors creating excessive ejection resistance, as they serve different purposes.

Inventive Principle:

Principle #1Segmentation

4Ease of operation

If a handle-based locking mechanism is used, then locking and unlocking becomes quick and effortless, but the device complexity increases

Engineering Contradiction:

Improvelocking operation easeVSAvoidlocking device structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The handle serves multiple functions: it is both the visible operating interface and the mechanical actuator. Rotating the handle simultaneously engages the locking mechanism, providing both operational simplicity and functional integration without requiring separate components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables quick and effortless insertion, locking, unlocking, and ejection of servers from a shelf through a single rotational stroke of the handle, reducing the need for tools and simplifying the process.

Implementation Method 1

an elastic restoring component connected to the first end of the swinging bracket and the activation bracket. The elastic restoring component is stretched to store an elastic restoring force when the activation bracket moves along the first direction with respect to the case.

Methodology Applied

Scientific EffectElastic restoring force: Elasticity

Data Source

PatentUS10172254B2Handle locking device and electronic system having the same

Publication Date: 2019.01.01 WIWYNN CORP

AI summary

A handle locking device and an electronic system of the invention use the rotation of a handle for push movement against a case so as to move an activation bracket to have displacement relative to a swinging bracket. Pushed by the activation bracket, the swinging bracket produces a lateral swing at one end accordingly so that a hook at the end of the swinging bracket laterally moves between a locking position and an unlocking position. Further rotation of the handle will further push against the shelf where the electronic system is mounted and bring the electronic system to move relative to the shelf and eject. A single rotational stroke of the handle is transformed into consecutive unlocking movement and ejection movement. Insertion, locking, unlocking, and ejection of the electronic system on the shelf are easily done by manual operation of the handle without the need of additional tools.