Dual-End Sliding Storage Chassis for Shorter Pull-Out Maintenance

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Solution Overview

Problem

Conventional storage devices face challenges with long pull-out lengths of installation frames, leading to high torque requirements, increased manufacturing costs, and reduced space utilization due to the need for wider channels for maintenance, which complicates operations and increases the risk of toppling.

Innovation Solution

A chassis design with a bi-directional sliding frame that allows components to be maintained from both ends, reducing the pull-out length and torque, and incorporating a guide rail for simplified installation and maintenance, along with a limiting assembly to ensure effective heat dissipation and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the installation frame uses a single-end sliding design, then the structure is simple, but the pull-out length is long which generates large torque and increases manufacturing costs

Engineering Contradiction:

Improvestructure simplicityVSAvoidpull-out length

Core Design Contradiction:

Device complexityVSLength of moving object

Solution Approach 1:

The installation frame is divided into two separate sliding portions: a first sliding portion that slides out from the first end of the chassis body, and a second sliding portion that slides out from the second end of the chassis body. This segmentation allows each portion to have a shorter pull-out length, reducing the torque on the pulling structure while maintaining the overall functionality of the installation frame.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If the channel width is increased to facilitate maintenance, then maintenance accessibility is improved, but space utilization is reduced and the risk of toppling increases

Engineering Contradiction:

Improvemaintenance accessibilityVSAvoidspace utilization

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The maintenance function is segmented into two access points: one at the first end of the chassis body and another at the second end. This allows maintenance personnel to access electronic components from either end, eliminating the need for a wide channel while maintaining ease of maintenance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of providing wide access from one end, the design inverts the approach by providing access from both ends. This allows maintenance to be performed through narrower openings at each end, improving space utilization while maintaining accessibility.

Inventive Principle:

Principle #13The other way round (Inversion)

3Length of moving object

If the pull-out length is reduced, then torque and manufacturing costs are reduced, but maintenance accessibility may be compromised

Engineering Contradiction:

Improvepull-out lengthVSAvoidmaintenance accessibility

Core Design Contradiction:

Length of moving objectVSEase of operation

Solution Approach 1:

The installation frame is segmented into two sliding portions that can be pulled out independently from opposite ends. This segmentation enables each portion to have a reduced pull-out length for lower torque requirements, while the combined access from both ends maintains full maintenance capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The maintenance access problem is solved by transitioning from a single-direction access model to a dual-direction access model. By allowing maintenance personnel to approach from either the first end or the second end, the system maintains accessibility while reducing the pull-out length requirement in each direction.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 bi-directional sliding frame design reduces manufacturing costs, improves space utilization, enhances stability, and facilitates easier maintenance, while maintaining effective heat dissipation and operator safety.

Implementation Method 1

the guide rail is configured to guide the installation frame during sliding motion

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

a limiting assembly is provided in the chassis body to limit a sliding distance of the installation frame in the channel

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12560986B2Chassis-based storage device with dual-end sliding frame

Publication Date: 2026.02.24 HUAWEI TECH CO LTD

AI summary

A chassis includes a chassis body and an installation frame, and the chassis body has a channel that passes through a first end and a second end that are of the chassis body. The installation frame is slidably disposed in the channel of the chassis body. The installation frame has a first part facing the first end of the chassis body and a second part facing the second end of the chassis body; and the first part is capable of sliding out from the first end of the chassis body, and the second part is capable of sliding out from the second end of the chassis body.