Server Drawer Lifting Mechanism for Front Hard Disk Access

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional drawer devices in servers limit the accessibility of hard disk modules, restricting the accommodating space and allowing only front-side hard disk replacement due to design constraints, making it difficult to access or replace hard disks behind the primary module.

Innovation Solution

A drawer lifting device with a gear group, shaft module, and pivot mechanism that allows the first hard disk module to be moved up and down relative to the bottom plate, enabling the second hard disk module behind it to be accessed from the front, thereby increasing the server's accommodating space and improving accessibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the first hard disk module is fixed on the bottom plate, then the structure is simple and stable, but the second hard disk module cannot be accessed from the front

Engineering Contradiction:
ImproveAccessibility of hard disk modulesVSAvoidStructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The first hard disk module is transformed from a fixed position to a movable position through the lifting device. The module can be dynamically adjusted between a lower position (when bottom plate is retracted) and an upper position (when bottom plate is extended), enabling access to the second hard disk module while maintaining structural simplicity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A lifting device comprising a gear group, shaft module, and connector is introduced as an intermediary mechanism between the bottom plate and the first hard disk module. This mediator enables the vertical movement of the first module, facilitating access to the second module without directly complicating the overall structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If only front-side hard disk replacement is allowed, then the design is simple, but the accommodating space is limited

Engineering Contradiction:
ImproveAccommodating spaceVSAvoidHard disk replacement accessibility
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The invention transitions from a single-plane (front-only) access design to a two-dimensional access system. By enabling vertical movement of the first hard disk module, the system allows access to both front-side and rear-side hard disk modules, effectively expanding the usable accommodating space without compromising operational simplicity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the first hard disk module is moved up when bottom plate is pulled out, then accessibility is improved, but the lifting mechanism becomes more complex

Engineering Contradiction:
ImproveConvenience of hard disk replacementVSAvoidLifting device complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The lifting device is designed to operate automatically based on the position of the bottom plate. When the bottom plate is pulled out, the gear group engages with the rack to lift the first hard disk module; when the bottom plate is retracted, the module automatically lowers. This self-service mechanism eliminates the need for additional control systems, maintaining operational simplicity despite the added mechanical complexity.

Inventive Principle:
Principle #25Self-service

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

The lifting device allows for convenient access and replacement of hard disks from the front, expanding the server's accommodating space and enhancing usability by enabling the movement of the first hard disk module up when the bottom plate is pulled out and back down when pushed in, facilitating easy access to both primary and secondary hard disk modules.

Implementation Method 1

The gear group is fixed on the second hard disk module and coupled to the first rack

Methodology Applied
Scientific EffectGear mechanism: Gear

Implementation Method 2

Two terminals of the first shaft are pivotally connected to the connector and the first hard disk module respectively

Methodology Applied
Scientific EffectPivotal connection: Hinge

Data Source

PatentUS9030827B2Server and drawer lifting device
Publication Date: 2015.05.12 QUANTA COMPUTER INC
  • US9030827B2 patent drawing
  • US9030827B2 patent drawing
  • US9030827B2 patent drawing

AI summary

A server includes a casing, a bottom plate, a first hard disk module, a second hard disk module, and a lifting device. The bottom plate is disposed in the casing and configured to be sliding relative to the casing. The first hard disk module is movably disposed on the bottom plate. The first hard disk module includes a track. The second hard disk module is fixed on the bottom plate and disposed behind the first hard disk module. The lifting device moves up the first hard disk module when the bottom plate is pulled out of the casing, and the lifting device moves down the first hard disk module when the bottom plate is pushed into the casing. A drawer lifting device is also disclosed.