Cooling Passage Layout for High-Temperature Region Heat Dissipation

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Solution Overview

Problem

Existing cooling components inefficiently cool non-preferentially targeted regions due to refrigerant temperature increase while cooling high-heat generation areas, leading to inadequate cooling of other regions.

Innovation Solution

A cooling component design with a refrigerant supply passage for high-temperature regions and a connecting passage that cools lower-temperature regions, where the connecting passage is positioned farther away from the heat source, allowing the refrigerant to maintain lower temperatures and efficiently cool additional regions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the refrigerant is supplied to the high-temperature region first to cool it preferentially, then the high-temperature region is cooled effectively, but the refrigerant temperature increases and it cannot efficiently cool the other regions

Engineering Contradiction:

Improvecooling effectiveness of high-temperature regionVSAvoidcooling efficiency for other regions

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

The cooling component is divided into multiple independent cooling sections (first cooling section and second cooling section), each with its own refrigerant supply passages. This segmentation allows different regions to receive refrigerant at appropriate temperatures simultaneously, rather than sequentially, resolving the contradiction between preferential cooling of high-temperature regions and efficient cooling of other regions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the cooling component are provided with different refrigerant supply passages that can be independently controlled. The first refrigerant supply passage supplies refrigerant to the high-temperature region, while the second refrigerant supply passage supplies refrigerant to other regions. This local differentiation allows each region to receive refrigerant with appropriate temperature characteristics, maintaining cooling effectiveness across all regions.

Inventive Principle:

Principle #3Local quality

2Loss of energy

If the refrigerant passes through a passage formed along the bottom surface in contact with the heat generating component, then the refrigerant receives heat and cools the component, but the refrigerant temperature further increases reducing its cooling capability

Engineering Contradiction:

Improveheat dissipation from componentVSAvoidrefrigerant temperature

Core Design Contradiction:

Loss of energyVSTemperature

Solution Approach 1:

The refrigerant supply system is segmented into multiple independent passages (first refrigerant supply passage and second refrigerant supply passage) that can operate independently. This allows the refrigerant to be supplied to different regions simultaneously with controlled flow rates, preventing excessive temperature increase in any single region and maintaining overall cooling effectiveness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system provides refrigerant supply capacity that exceeds what would be needed for a single region by having multiple independent supply passages. This excess capacity allows the refrigerant to cool multiple regions effectively without its temperature rising too much, as the heat load is distributed across multiple parallel cooling paths.

Inventive Principle:

Principle #16Partial or excessive action

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 efficient cooling of both high-temperature and lower-temperature regions by reusing refrigerant, ensuring effective heat dissipation across the entire cooling target.

Implementation Method 1

a refrigerant supplied from an upstream-side supply port and discharged toward a downstream-side discharge port flows

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the refrigerant that has cooled the portion having a high heat generation density of the heat generating component passes through a passage formed along a bottom surface of the cooling component in contact with the heat generating component

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS20240284633A1Cooling component and device

Publication Date: 2024.08.22 NEC PLATFROMS LTD

AI summary

The cooling component cools the object to be cooled that includes a high-temperature region and another region. Inside the cooling component, disposed is a flow passage through which the refrigerant that is supplied from a supply port and discharged toward a discharge port flows. The cooling component includes a cooling section opposing the high-temperature region and another cooling section. The flow passage includes: a refrigerant supply passage that includes an upstream-side passage disposed inside the cooling section and that cools the high-temperature region by the refrigerant; a connecting passage that connects to the refrigerant supply passage and that is disposed at a position further from the object to be cooled than the upstream-side passage; and a refrigerant discharge passage that is disposed inside the another cooling section, that includes a downstream-side passage connected to the connecting passage, that cools the other region by the refrigerant, and that discharges the refrigerant.