Bus Bar Heat Transfer Structure for Compact Electrical Connections
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Solution Overview
Problem
Existing electrical connection units face challenges in improving heat dissipation properties, which is crucial for efficient operation in vehicles with electronic components that generate heat.
Innovation Solution
The electrical connection unit incorporates a first and second bus bar connected by a heat transfer member, enhancing heat dissipation through a thermally conductive structure that includes a heat transfer sheet and a metal plate for efficient heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a housing accommodates electronic components and bus bars in a standing posture, then the electrical connection unit can be compactly structured, but the heat dissipation property deteriorates
Solution Approach 1:
The patent transitions from a vertical heat dissipation approach to a horizontal heat transfer approach by laying the bus bars horizontally and using heat transfer members to conduct heat laterally from the energized bus bar to the non-energized bus bar, effectively utilizing the horizontal dimension for heat management
Solution Approach 2:
The patent introduces heat transfer members as intermediary elements between the energized and non-energized bus bars. These members facilitate efficient thermal coupling and heat transfer, acting as mediators that enable heat dissipation without requiring additional external cooling systems
2Temperature
If heat transfer members are added to thermally connect bus bars, then heat dissipation property improves, but device complexity increases
Solution Approach 1:
The non-energized bus bar serves dual functions: it acts as an electrical conductor for power distribution and simultaneously functions as a heat sink for thermal management. This multi-functionality eliminates the need for separate dedicated heat dissipation components
Solution Approach 2:
The system utilizes the non-energized bus bar's inherent thermal properties to dissipate heat from the energized bus bar. The structure essentially cools itself by utilizing the thermal mass and conductivity of existing components rather than requiring external active 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
This configuration improves the heat dissipation properties of the electrical connection unit, effectively managing heat generated by electronic components and ensuring optimal performance in vehicles.
Implementation Method 1
a first heat transfer member thermally connecting the first bus bar to the second bus bar
Data Source
AI summary
An electrical connection unit includes a first bus bar, a second bus bar, and a first heat transfer member thermally connecting the first bus bar to the second bus bar.