Liquid Cooling Device With Selective Conduit Routing

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Solution Overview

Problem

Existing liquid-cooled cooling devices for electronic devices have complex pipeline arrangements that occupy a large amount of space and are inefficient in coolant management.

Innovation Solution

A cooling device with a simplified cabinet design and a coolant circulation mechanism featuring rotating control conduits and conduits with varying sizes for efficient coolant filling and recovery, allowing for selective connection to conduits for either filling or recovering coolant, reducing the amount of coolant required.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a traditional pipeline arrangement is used in liquid-cooled cooling devices, then coolant circulation is achieved, but the pipeline arrangement becomes complicated and occupies a large amount of space

Engineering Contradiction:
Improvepipeline arrangement complexityVSAvoidspace occupied by pipeline arrangement
Core Design Contradiction:
Device complexityVSVolume of stationary object

Solution Approach 1:

The patent combines multiple pipeline functions into a single integrated manifold structure. The manifold serves as a central hub that integrates inlet and outlet connections, distributing coolant to multiple channels simultaneously. This merging of previously separate pipeline components into one unified structure directly reduces pipeline arrangement complexity and minimizes the space occupied by the cooling system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The manifold structure performs multiple functions simultaneously: it serves as a distribution hub for coolant flow, provides structural support for channel alignment, and enables selective connection to different cooling channels. This multi-functionality eliminates the need for separate dedicated components for each function, thereby simplifying the overall pipeline arrangement and reducing spatial requirements.

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

2Temperature

If coolant is filled in large quantities for effective cooling, then cooling performance is improved, but the amount of coolant required increases system complexity and space requirements

Engineering Contradiction:
Improvecooling effectivenessVSAvoidcoolant quantity required
Core Design Contradiction:
TemperatureVSQuantity of substance

Solution Approach 1:

The patent implements varying channel diameters within the cooling structure, with larger diameter channels positioned in high-heat-generation regions and smaller diameter channels in low-heat-generation regions. This local quality differentiation optimizes coolant distribution to match heat load distribution, ensuring effective cooling in critical areas while minimizing coolant consumption in less critical areas, thereby reducing the total coolant quantity required.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the physical parameters of the cooling channels by varying their diameters along different sections. This parameter variation allows the system to achieve optimal cooling efficiency with reduced coolant volume by concentrating coolant flow where it is most needed (in high-heat regions) and reducing flow in lower-heat regions, thus improving cooling effectiveness while minimizing coolant quantity requirements.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If multiple conduits of the same size are used for coolant circulation, then coolant flow is simplified, but the ability to selectively fill and recover coolant in different channels is reduced

Engineering Contradiction:
Improvecoolant filling and recovery selectivityVSAvoidconduit size variation
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies different conduit diameters in different locations based on local cooling requirements. Larger conduits are used in regions requiring higher coolant flow rates, while smaller conduits are used in regions with lower cooling demands. This local differentiation enables selective control of coolant flow to specific channels, improving ease of operation for targeted filling and recovery while the variations are integrated into a unified manifold structure that does not significantly increase overall device complexity.

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

The solution enables a compact and efficient cooling system that minimizes coolant usage and simplifies the process of filling and recovering coolant, optimizing space usage and operational efficiency.

Implementation Method 1

The coolant circulation mechanism is connected to the heat exchange mechanism and the cabinet for filling a coolant in the cabinet to cool the electronic device

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

a cooling mechanism (70). The cooling mechanism (70) is connected to the heat exchange mechanism (50 for performing heat-exchange with the coolant

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS11291137B2Cooling device
Publication Date: 2022.03.29 FULIAN PRESION ELECTRONICS (TIANJIN) CO LTD
  • US11291137B2 patent drawing
  • US11291137B2 patent drawing
  • US11291137B2 patent drawing

AI summary

A cooling device includes a cabinet, a coolant circulation mechanism, and a heat exchange mechanism. The coolant circulation mechanism includes a first conduit, a second conduit, a control conduit, and a circulation conduit. The circulation conduit is connected to the cabinet and the heat exchange mechanism. The first conduit and the second conduit are connected to the heat exchange mechanism. The control conduit is connected to the cabinet and selectively connects to the first conduit or the second conduit. When the control conduit connects to the second conduit, coolant from the cabinet flows to the heat exchange mechanism through the second conduit. When the control conduit connects to the first conduit, coolant from the heat exchange mechanism flows to the cabinet through the first conduit. Coolant in the cabinet flows through the circulation conduit to the heat exchange mechanism when a level of the coolant reaches the circulation conduit.