Bidirectional Sliding Chassis Layout for Cooling Dense Storage Cabinets

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Solution Overview

Problem

Existing storage devices face challenges in heat dissipation performance and efficient space utilization due to the structure of the chassis, which also affects the ease of maintenance and increases manufacturing costs.

Innovation Solution

A chassis design with bi-directional sliding supports that accommodate electrical elements, featuring compartments for heat dissipation fans and compartments for electrical components, allowing airflow to circulate effectively through multiple paths, and a backflow prevention mechanism to maintain heat dissipation during maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the support structure is designed to slide out for maintenance, then ease of repair is improved, but the pull-out length increases leading to structural instability

Engineering Contradiction:
Improveease of maintenanceVSAvoidstructural stability
Core Design Contradiction:
Ease of repairVSStability of the object's composition

Solution Approach 1:

The support structure is divided into multiple segments or sections that can be independently adjusted. This allows the support to slide out for maintenance in a controlled manner, maintaining stability by keeping segments connected rather than requiring the entire structure to extend fully.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure incorporates dynamic elements such as telescopic mechanisms or adjustable linkages that allow controlled movement during maintenance while maintaining structural integrity. The support can extend partially or retract to different positions, providing both accessibility and stability as needed.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If more accommodation compartments are added for electrical elements, then storage capacity is improved, but device complexity increases

Engineering Contradiction:
Improvestorage capacityVSAvoidstructure complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The support structure serves multiple functions simultaneously: it provides structural support, contains multiple accommodation compartments for different electrical elements, enables maintenance access, and maintains stability. This multi-functionality increases storage capacity without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple accommodation compartments are nested within the support structure in a hierarchical arrangement. Smaller compartments for specific electrical elements are integrated within the larger support framework, maximizing storage capacity while utilizing the existing structural complexity efficiently.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If the chassis body provides full protection and airtightness, then reliability is improved, but heat dissipation performance deteriorates

Engineering Contradiction:
Improveprotection functionVSAvoidheat dissipation performance
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The chassis body applies different properties to different regions: sealed and protected areas for electrical elements that require reliability, and open or vented areas for heat dissipation. This localized differentiation allows the chassis to provide protection where needed while maintaining heat dissipation performance through selective transparency or openness in specific zones.

Inventive Principle:
Principle #3Local quality

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

Enhances heat dissipation performance, reduces manufacturing costs, and improves space utilization by minimizing the pull-out length of supports, facilitating easier maintenance and reducing the risk of structural failure.

Implementation Method 1

the heat dissipation fan generates a pressure difference through rotation of the heat dissipation fan. Air outside the chassis body is capable of entering the accommodation compartment from the first end of the chassis body, flowing to the second accommodation compartment after passing through the fan compartment

Methodology Applied
Scientific EffectPressure difference: Pressure Gradient

Data Source

PatentEP4075235B1Cabinet and storage device
Publication Date: 2025.11.26 HUAWEI TECH CO LTD
  • EP4075235B1 patent drawingFigure 1~2
  • EP4075235B1 patent drawingFigure 3~4
  • EP4075235B1 patent drawingFigure 5~7

AI summary

This application provides a chassis and a storage device, to resolve problems of poor use experience and relatively low heat dissipation of the chassis. The chassis provided in this application includes a chassis body and a support, and the chassis body has a channel that passes through a first end and a second end that are of the chassis body. The support is slidably disposed in the channel of the chassis body. The support is provided with a first accommodation compartment, a fan compartment, and a second accommodation compartment that are successively disposed along a direction from a first end of the channel to a second end of the channel. The first accommodation compartment is capable of sliding out of the chassis body from the first end, and the second accommodation compartment is capable of sliding out of the chassis body from the second end. The fan compartment is configured to accommodate a heat dissipation fan. The chassis provided in this application can effectively shorten a length of the support sliding out of the chassis body, so that more electrical elements can be installed on the support. In addition, this helps improve continuous heat dissipation of the chassis.