Laminated Connector Terminal With Alternating Elastic Arms
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Solution Overview
Problem
Single-layer conductive contacts in power connectors exhibit high contact resistance and low current path density, limiting their efficiency in electrical connections.
Innovation Solution
A pair of terminals with plate-like fixation parts and elastic arms are alternately arranged for electrical contact with a shared bus bar, enhancing contact impedance and current path density, and auxiliary terminals with elastic arms provide robustness and stability, while conductive blocks ensure low body resistance and heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-layer conductive contacts are used, then the structure is simple, but the contact resistance is high and current path density is low
Solution Approach 1:
The contact structure is divided into multiple sub-terminals (first sub-terminal with first elastic arms, second sub-terminal with second elastic arms) that are laminated and alternately arranged. This segmentation creates multiple current paths while maintaining manageable structural complexity through modular assembly.
Solution Approach 2:
The invention transitions from a single-layer contact structure to a multi-layer laminated structure. The first and second sub-terminals are arranged in different layers with alternating elastic arms, creating three-dimensional current paths that increase current path density without proportionally increasing structural complexity.
2Reliability
If multiple sub-terminals with elastic arms are used, then current path density increases, but device complexity increases
Solution Approach 1:
Multiple sub-terminals are merged into a single integrated terminal assembly where the first and second sub-terminals are laminated together. The elastic arms from both sub-terminals work in coordination to contact the bus bar, achieving high current path density while presenting a unified structural interface.
Solution Approach 2:
The first sub-terminal and second sub-terminal are nested in a laminated configuration, with each sub-terminal containing multiple elastic arms. This nested arrangement allows multiple current paths to be compactly organized within the terminal structure, increasing current path density without linearly increasing 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
The solution significantly reduces contact impedance and increases current path density, enabling stable and reliable electrical connections even under deviation or shaking, and improves current carrying and heat transfer capabilities.
Implementation Method 1
a plurality of first elastic arms extending from the first fixation part, and a second sub-terminal having a second fixation part and a plurality of second elastic arms extending from the second fixation part
Implementation Method 2
conductive blocks ensure low body resistance and heat transfer
Data Source
AI summary
A connector includes a pair of terminals. Each of the terminals includes a first sub-terminal having a first fixation part and a plurality of first elastic arms extending from the first fixation part, and a second sub-terminal having a second fixation part and a plurality of second elastic arms extending from the second fixation part. The first fixation part of the first sub-terminal is laminated on the second fixation part of the second sub-terminal, and the plurality of first elastic arms and the plurality of second elastic arms are alternately arranged in a row for electrically contacting with a shared bus bar.