Coolant Heat Pipe Fault Detection via Solenoid Valve Temperature Response

Solution Overview

Problem

Existing liquid cooling heat dissipation apparatuses cannot perform self-checks on heat pipes or solenoid valves, posing potential safety hazards due to inability to detect abnormalities in these components.

Innovation Solution

A detection apparatus equipped with a control chip that controls the solenoid valve and monitors temperature differences to determine if the coolant heat pipe or solenoid valve is abnormal, using power supply circuits to manage the solenoid valve's state and send alarm information for maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a liquid cooling heat dissipation apparatus uses a pump and solenoid valve to control coolant circulation, then heat dissipation efficiency is improved, but the system cannot perform self-checks on the heat pipe or solenoid valve, posing potential safety hazards

Engineering Contradiction:

Improvesafety of heat dissipation systemVSAvoidcomplexity of detection system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The control chip performs self-diagnosis of the solenoid valve and heat pipe by controlling the solenoid valve to switch between open and closed states and monitoring temperature changes of the component. The system uses its own control and sensing capabilities to detect abnormalities without requiring external detection equipment, enabling the system to service itself.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The control chip is designed to perform multiple functions: controlling the solenoid valve operation, monitoring component temperature, and detecting abnormalities in the solenoid valve and heat pipe. By integrating these functions into a single control chip, the system avoids adding separate detection apparatus while enhancing safety.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If another temperature detection apparatus is added to detect heat pipe or solenoid valve abnormalities, then detection capability is improved, but system cost and complexity increase

Engineering Contradiction:

Improveabnormality detection accuracyVSAvoidnumber of detection devices

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The control chip is designed to perform multiple functions: controlling the solenoid valve operation, monitoring component temperature, and detecting abnormalities in the solenoid valve and heat pipe. By integrating these functions into a single control chip, the system avoids adding separate detection apparatus while enhancing safety.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The control chip performs self-diagnosis of the solenoid valve and heat pipe by controlling the solenoid valve to switch between open and closed states and monitoring temperature changes of the component. The system uses its own control and sensing capabilities to detect abnormalities without requiring external detection equipment.

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

Enables timely detection and prevention of potential hazards by determining solenoid valve and coolant heat pipe abnormalities, reducing costs by eliminating the need for additional temperature detection apparatuses and ensuring safe operation.

Implementation Method 1

a solenoid valve may be disposed on the heat pipe. When coolant in the heat pipe leaks, the coolant can be stopped from flowing in a timely manner in the heat pipe by controlling the solenoid valve.

Methodology Applied

Scientific EffectSolenoid: Solenoid

Implementation Method 2

the control chip can obtain a temperature difference of the component in the device when the working state of the solenoid valve is controlled, and determine whether the coolant heat pipe or the solenoid valve is abnormal based on the temperature difference.

Methodology Applied

Scientific EffectTemperature detection:

Implementation Method 3

absorbs heat from components (such as a processor and a graphics card) in the server, and dissipates heat inside the server to the outside

Methodology Applied

Scientific EffectHeat dissipation: Heat Exchanger

Implementation Method 4

drives coolant circulation in a heat pipe mainly by using a pump

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS12181380B2Detection apparatus and server

Publication Date: 2024.12.31 HUAWEI TECH CO LTD

AI summary

A detection apparatus and a server are provided, where the apparatus is configured to detect whether a coolant heat pipe or a solenoid valve on the coolant heat pipe in a device is abnormal, and the apparatus includes a control chip. The control chip can control a working state of the solenoid valve. The control chip can further obtain a temperature of a component in the device. When it is detected whether the coolant heat pipe or the solenoid valve is abnormal, the control chip may obtain a temperature difference of the component in the device when the working state of the solenoid valve is controlled, and relatively conveniently determine whether the coolant heat pipe or the solenoid valve is abnormal based on the temperature difference.