Conductive Member With Liquid Coolant For Heat Dissipation
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Solution Overview
Problem
Conductive members in electric vehicles and hybrid vehicles generate excessive heat due to high electric current conduction, leading to potential failures of heat-sensitive components, and increasing the cross-section to reduce resistance is not a practical solution.
Innovation Solution
A conductive member design incorporating an enclosure with liquid coolant and a conductor, where heat is transferred to the coolant for efficient cooling, and further cooled by the coolant's vaporization, maintaining efficient cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the cross section of the conductive member is increased to reduce resistance, then the resistance is reduced, but the size of the conductive member increases
Solution Approach 1:
The patent introduces liquid coolant as an intermediary substance between the conductor and the external environment. The coolant absorbs heat from the conductor through thermal conduction and carries it away, enabling effective cooling without requiring an increased cross-sectional area of the conductor itself.
Solution Approach 2:
The patent employs a liquid cooling system where coolant flows through channels formed by the stacked sheets. This hydraulic approach uses fluid circulation to efficiently remove heat from the conductor, avoiding the need to increase the conductor's physical dimensions.
2Temperature
If efficient cooling is implemented using liquid coolant, then cooling efficiency is improved, but the structure becomes more complex
Solution Approach 1:
The patent uses thin sheet structures that are stacked to form cooling channels. These thin films create the necessary fluid passages without requiring bulky or complex cooling apparatus, maintaining a relatively simple overall structure while achieving effective cooling.
Solution Approach 2:
The cooling channels are formed by stacking sheets in a nested configuration, where the coolant flow paths are created within the layered structure itself. This nested arrangement integrates the cooling function into the existing structural framework rather than adding separate complex cooling systems.
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 design effectively reduces heat buildup in conductive members, preventing component failures and maintaining cooling efficiency even with high electric currents.
Implementation Method 1
heat is transmitted to the liquid coolant disposed around the conductor
Implementation Method 2
the liquid coolant is vaporized. The conductor of the conductive member is further cooled by heat of vaporization of the liquid coolant
Data Source
AI summary
A conductive member includes an enclosure, a coolant, and a conductor. The enclosure includes a sheet and has liquid tightness. The coolant is enclosed in the enclosure. The conductor includes a cool section that is disposed in the enclosure and a projecting section that is liquid-tightly sealed with the sheet and projects from the enclosure.