Adjustable Server Rack Blanking Panel for Bypass Airflow

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Solution Overview

Problem

Existing blanking panels in server racks completely block airflow, preventing bypass airflow that could benefit liquid-cooled rear doors, and there is a lack of early detection for moisture and contaminant-induced performance deterioration due to limited access to rear doors in data centers.

Innovation Solution

A variable blanking panel that adjusts airflow through rack spaces, allowing bypass airflow to liquid-cooled rear doors and includes a passive indicator for moisture and contaminant detection, enabling adjustable airflow control and condition monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If blanking panels completely block rack spaces, then airflow is prevented from bypassing servers, but cooling efficiency of liquid-cooled rear doors deteriorates due to lack of bypass airflow

Engineering Contradiction:

Improvecooling efficiencyVSAvoidairflow blocking

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The blanking panel incorporates adjustable blades that can be rotated to different positions, transforming the static airflow blocking structure into a dynamic one. This allows the panel to adapt between completely blocking airflow and allowing controlled bypass airflow, resolving the contradiction between preventing server heat bypass and providing cooling to rear doors

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the airflow parameter from binary (blocked or fully open) to continuous control by adjusting blade angles. This enables optimization of airflow to achieve both prevention of server heat bypass and provision of cooling airflow to rear doors simultaneously

Inventive Principle:

Principle #35Parameter changes

2Reliability

If blanking panels completely block rack spaces, then server heat bypass is prevented, but access to rear doors for monitoring air quality deteriorates

Engineering Contradiction:

Improveheat bypass preventionVSAvoidaccess to rear doors

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The blanking panel is divided into multiple adjustable blades instead of a single solid barrier. This segmentation allows selective opening of specific sections while maintaining blocking in others, providing access to rear doors for air quality monitoring while still preventing heat bypass through the majority of the panel area

Inventive Principle:

Principle #1Segmentation

3Loss of energy

If bypass airflow is allowed to rear doors, then cooling efficiency improves, but moisture and contaminants in air may cause corrosion and contamination

Engineering Contradiction:

Improvecooling efficiencyVSAvoidmoisture and contaminants

Core Design Contradiction:

Loss of energyVSObject-affected harmful factors

Solution Approach 1:

The invention incorporates indicators that provide feedback about air quality conditions (moisture and contaminant levels) at the rear door. This feedback mechanism enables monitoring of environmental conditions that affect corrosion and contamination, allowing for proactive maintenance while still benefiting from the cooling airflow

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12575051B1Variable blanking panel for server racks

Publication Date: 2026.03.10 AMD DESIGN LLC

AI summary

An apparatus and method are provided for varying air flow into a specific rack space from the cold aisle, and to provide an indication of air quality. A blanking panel for a rack space includes rotatable blades that may be positioned in varying states between open and closed to vary the area through which air may flow and, thereby, vary the airflow itself. The blades may be constructed of a material that, when moisture or contaminants are present in the airflow, will indicate the presence by a change in the condition of the material.