Server Cooling Control Using Fluid Temperature Feedback

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Solution Overview

Problem

Existing server cooling technologies fail to account for changes in fluid state after heat exchange, adversely affecting the cooling efficiency of subsequent chips, particularly in high-performance servers.

Innovation Solution

A method and system that utilizes a fluid temperature sensor to monitor and regulate motor speed based on element and fluid temperatures, adjusting fluid velocity to enhance cooling efficiency by minimizing the impact of state changes on subsequent heating elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If fluid is used for heat exchange in server cooling, then cooling effect is achieved, but fluid state changes after heat exchange adversely affect cooling efficiency of subsequent heating elements

Engineering Contradiction:
Improvecooling effectVSAvoidcooling efficiency of subsequent heating elements
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The patent applies dynamics by making the motor speed adjustable based on real-time temperature feedback. The controller dynamically adjusts the motor speed according to the element temperature and fluid temperature, enabling the cooling system to adapt to changing thermal conditions and maintain optimal cooling efficiency for subsequent heating elements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements feedback control by using temperature sensors to continuously monitor both the heating element temperature and fluid temperature. This feedback information is fed to the controller, which adjusts the motor speed accordingly, ensuring that the cooling system compensates for fluid state changes and maintains reliable cooling performance

Inventive Principle:
Principle #23Feedback

2Productivity

If motor speed is increased to improve fluid circulation, then cooling performance is enhanced, but energy consumption increases

Engineering Contradiction:
Improvecooling performanceVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts motor speed based on actual cooling needs rather than operating at constant high speed. The controller modulates the motor speed according to temperature feedback, enabling the system to achieve required cooling performance while minimizing energy consumption during lower thermal load conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the motor by adjusting its speed based on thermal conditions. This parameter adjustment allows the system to optimize the balance between cooling performance and energy consumption, running at higher speeds only when thermally demanding

Inventive Principle:
Principle #35Parameter changes

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 system effectively enhances the cooling effect of server components by dynamically adjusting fluid velocity and direction to counteract state changes, improving overall cooling performance.

Implementation Method 1

the fluid temperature sensor is disposed between heating elements in a heating element group of the server... the fluid temperature sensor is configured for collecting fluid temperature of fluid between the heating elements

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

determining, by the controller, a motor speed of a motor corresponding to the heating element group... controlling, by the controller, the motor speed, and controlling a fluid velocity of the fluid

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 3

the fluid temperature sensor is disposed between heating elements in a heating element group... collecting fluid temperature of fluid between the heating elements

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentUS12490414B2Method and system for controlling internal temperature of server, server, device, and medium
Publication Date: 2025.12.02 INSPUR SUZHOU INTELLIGENT TECH CO LTD
  • US12490414B2 patent drawing
  • US12490414B2 patent drawing
  • US12490414B2 patent drawing

AI summary

A method and system for controlling internal temperature of a server, a device, a non-transitory readable storage medium, and a server, which relate to the technical field of servers. The method is applied to a system for controlling the internal temperature of the server, and the method includes: acquiring, by the controller, element temperature of the heating elements in the heating element group; acquiring, by the controller and the fluid temperature sensor, the fluid temperature of the fluid between the heating elements in the heating element group; determining, by the controller, a motor speed of a motor corresponding to the heating element group according to the element temperature and the fluid temperature; and controlling, by the controller, the motor speed, and controlling a fluid velocity of the fluid between the heating elements in the heating element group, to cool interior of the server.