Electrical Connection Unit Venting Structure for Better Heat Dissipation
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Solution Overview
Problem
Existing electrical connection units face challenges in improving heat dissipation properties.
Innovation Solution
The electrical connection unit incorporates a base member with a flat surface portion and a metal plate, where the metal plate has a protruding portion inserted into a through-hole of the base member, allowing air passage and enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a bus bar is attached to a housing in a standing posture, then the electrical connection unit can be assembled with simple structure, but the heat dissipation property is insufficient
Solution Approach 1:
The invention introduces a through-hole penetrating the base member in the thickness direction, creating a new dimensional pathway for air flow. This vertical dimension allows cool air to enter from below and rise through the accommodation portion, establishing a convection current that enhances heat dissipation without complicating the horizontal arrangement of components
Solution Approach 2:
The base member is designed with porous-like features including the through-hole and accommodation portion that allow air permeation. This creates channels for air flow through the structure, enabling passive cooling by allowing air to pass through and carry heat away from the bus bar and electronic components
2Temperature
If air passages are added to improve heat dissipation, then heat dissipation property is enhanced, but the device complexity increases
Solution Approach 1:
The through-hole serves multiple functions simultaneously: it provides structural support as part of the base member, creates an air passage for cooling, and allows the protruding portion to be positioned and secured. The accommodation portion also serves dual purposes by housing the bus bar while simultaneously acting as a heat dissipation chamber. This multi-functionality reduces the need for separate cooling components
Solution Approach 2:
The invention merges the housing structure with the cooling system by integrating the air passages directly into the base member. The through-hole and accommodation portion are formed as integral parts of the base member rather than separate components, combining structural support and thermal management functions into a single element, thereby reducing overall device complexity
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.
Implementation Method 1
the protruding portion forms a second gap through which air is able to pass between the protruding portion and an inner circumferential surface of the through-hole
Data Source
AI summary
An electrical connection unit includes a base member, a bus bar, and a metal plate. The base member includes a flat surface portion having a first surface and a second surface located opposite the first surface. The flat surface portion includes an accommodation portion recessed or penetrating the flat surface portion in a first direction (thickness direction of the flat surface), and a through-hole penetrating the flat surface portion. At least a part of the bus bar is accommodated in the accommodation portion and extends along the flat surface portion. The metal plate includes a metal base portion facing the second surface with a first gap between the metal base portion and the second surface, and a protruding portion protruding from the metal base portion, inserted into the through-hole, and forming a second gap between the protruding portion and an inner circumferential surface of the through-hole.