Stacked Connection Terminal Assembly for Stray Inductance Reduction
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Solution Overview
Problem
Electrical devices in AC circuits generate stray inductance due to electromagnetic induction, leading to losses, signal attenuation, and reduced stability, affecting the functionality and safety of the circuit system.
Innovation Solution
The electrical device design includes first and second connection terminals with opposing current flow directions, arranged at intervals and intersecting planes, with insulating sheets to minimize stray inductance and enhance stability, using fusion welding for compact connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If connection terminals are arranged in conventional configurations, then electrical connectivity is achieved, but stray inductance increases causing losses and signal attenuation
Solution Approach 1:
The connection terminals are divided into multiple segments (first connection portions and second connection portions) that are stacked along the second direction. This segmentation allows the current to flow through multiple smaller paths rather than a single large loop, thereby reducing the overall stray inductance while maintaining electrical connectivity.
Solution Approach 2:
The connection terminals transition from a conventional planar arrangement to a three-dimensional stacked configuration. By arranging first and second connection portions in layers along the second direction (intersecting the first direction), the patent reduces the loop area for current flow, thereby reducing stray inductance without compromising connectivity.
2Reliability
If connection terminals are placed close together to reduce size, then device compactness improves, but stray inductance increases affecting stability
Solution Approach 1:
The patent utilizes the third dimension (stacking along the second direction) to arrange connection terminals vertically rather than horizontally. This allows compact placement while minimizing the horizontal loop area, thereby reducing stray inductance and improving stability without significantly increasing device volume.
Solution Approach 2:
The first and second connection portions are positioned to create opposing current paths that counterbalance each other's magnetic field effects. This counterbalancing arrangement reduces net stray inductance while maintaining compact dimensions, thereby improving reliability without sacrificing compactness.
3Object-generated harmful factors
If conventional connection terminal arrangements are used, then manufacturing is simple, but stray inductance causes signal attenuation and functional issues
Solution Approach 1:
The connection terminals are segmented into first and second connection portions that can be manufactured as separate elements and then stacked. This segmentation allows for standardized manufacturing processes for each segment while achieving the overall goal of reducing stray inductance through the stacked configuration.
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
Stray inductance is reduced, improving stability and anti-interference ability, allowing accurate current data collection and enhancing the safety and functionality of electrical devices in AC circuits.
Implementation Method 1
Electrical devices in an AC circuit inevitably generate stray inductance under the electromagnetic induction effect
Data Source
AI summary
An electrical device includes: a first electrical device body; first connection terminals including a plurality of first connection portions protruding from the first electrical device body along a first direction; and second connection terminals including a plurality of second connection portions protruding from the first electrical device body along the first direction, a first group including one of the first connection portions and one of the second connection portions stacked along a second direction, and the second direction intersecting the first direction. First groups are disposed at intervals.