Conductive Member With Head Portion For Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional circuit assemblies with metal members fixed to busbars have limited heat dissipation capabilities, necessitating an improvement in thermal management without compromising electrical conductivity and leakage characteristics.
Innovation Solution
A conductive member design featuring a busbar with a through hole and a metal member having a shaft portion with a larger first head portion for increased heat capacity, and optionally a second head portion for secure fixation, allowing for enhanced thermal conductivity and surface contact with a heat sink, while maintaining electrical conductivity and suppressing leakage degradation by using a copper alloy busbar and pure copper metal member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional metal member without head portions is used, then the device complexity is low, but the heat dissipation capability is insufficient
Solution Approach 1:
The metal member is segmented into three distinct portions: a shaft portion for insertion through the through hole, a first head portion at one end for heat dissipation contact, and a second head portion at the other end for fixation. This segmentation allows each portion to serve its specific function optimally while maintaining overall structural integrity.
Solution Approach 2:
The metal member transitions from a simple linear rod to a three-dimensional structure with expanded head portions at both ends. The first head portion provides a larger surface area for thermal contact with the busbar, while the second head portion extends beyond the busbar for secure fixation, adding dimensional complexity that enhances functional performance.
2Temperature
If pure copper is used for the busbar, then thermal conductivity and electrical conductivity are increased, but leakage characteristics are degraded
Solution Approach 1:
Different material qualities are applied to different components: the busbar uses a copper alloy that provides balanced electrical conductivity, thermal conductivity, and leakage prevention properties, while the metal member uses pure copper that maximizes thermal conductivity for heat dissipation. This local differentiation of material properties optimizes each component for its specific function.
Solution Approach 2:
The system employs a composite material approach by combining a copper alloy busbar with a pure copper metal member. The copper alloy provides a balance of electrical and thermal properties along with leakage protection, while the pure copper component enhances the thermal conductivity pathway for efficient heat dissipation from the shaft portion through the first head portion.
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 significantly increases heat dissipation through improved thermal conductivity and surface contact, while maintaining electrical conductivity and preventing leakage characteristic degradation, using a simple configuration that effectively addresses the limitations of conventional designs.
Implementation Method 1
the metal member includes a shaft portion passed through the through hole, and a first head portion at one end portion of the shaft portion... it is possible to increase the heat capacity of the metal member... increase the heat dissipation
Implementation Method 2
the busbar is formed with a copper alloy, whereas the metal member is formed with pure copper. Accordingly, it is possible to suppress the degradation of leakage characteristics, while increasing the thermal conductivity and the electrical conductivity
Data Source
AI summary
Provided is a conductive member including a busbar having a through hole, and a metal member fixed to the busbar, the metal member including a shaft portion passed through the through hole, and a first head portion at one end portion of the shaft portion, the first head portion having an outer diameter larger than the diameter of the through hole. Since the metal member includes the first head portion, it is possible to increase the heat capacity of the metal member as compared with that achieved with a conventional conductive member that does not include the first head portion. Accordingly, it is possible to further increase the heat dissipation of the conductive member using a simple configuration.