Compact Bus Bar with Perpendicular Terminal Protection
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Solution Overview
Problem
Conventional metallic bus bars require increased space due to the longitudinal arrangement of terminal-protecting portions, tuning fork-shaped, and plate-shaped terminal portions, which can lead to larger sizes and increased space requirements for receiving the bus bar in electric junction boxes.
Innovation Solution
A metallic bus bar design featuring an elongated base plate with tuning fork-shaped terminal portions and a terminal-protecting portion extending perpendicularly from the longitudinal ends of the base plate, reducing the overall length by positioning the terminal-protecting portion outside the longitudinal direction of the tuning fork-shaped terminal portions, thereby saving space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal-protecting portion, tuning fork-shaped portion, and plate-shaped terminal portion are arranged in the longitudinal direction of the base plate, then the terminal-protecting portion can protect the tuning fork-shaped portion from deformation and breakage, but the overall length of the bus bar increases, requiring greater space for receiving the bus bar
Solution Approach 1:
The terminal-protecting portion is extended in the width direction (lateral direction) of the base plate instead of the longitudinal direction, changing the arrangement dimension from longitudinal to lateral. This allows the protective function to be maintained while reducing the overall length of the bus bar, as the protection is now provided sideways rather than end-to-end.
2Reliability
If the terminal-protecting portion is extended in the longitudinal direction to protect the tuning fork-shaped portion, then the protective coverage is improved, but the bus bar requires greater space in the electric junction box
Solution Approach 1:
The terminal-protecting portion is reoriented to extend in the width direction (lateral direction) perpendicular to the longitudinal direction of the base plate. This dimensional change allows the protective function to be achieved while minimizing the overall footprint area of the bus bar in the electric junction box, as the protection is now provided in the width dimension rather than increasing the length dimension.
Data Source
AI summary
The invention provides a bus bar, which includes an elongated base plate, a plurality of tuning fork-shaped terminal portions and a plurality of plate-shaped terminal portions both extending from one lateral end of the elongated base plate, a terminal-protecting portions being perpendicular to the elongated base plate and extending from both longitudinal ends of the elongated base plate, and an electric wire-crimping portion extending from the other lateral end of the elongated base plate.