Electrical Connector Grounding Resonance Reduction
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Solution Overview
Problem
Conventional electrical connectors experience resonance issues due to electromagnetic waves from elastic arms and ground terminals, which affect signal transmission.
Innovation Solution
The electrical connector design features contact portions of the grounding member and ground terminals not on the same horizontal plane, with distinct contact arms and loops to reduce resonance by preventing wave peak superposition and minimizing insertion force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact portions of grounding member and ground terminal are located on the same horizontal plane, then the structure is simple and easy to manufacture, but electromagnetic waves resonate inside the mating slot affecting signal transmission
Solution Approach 1:
The patent applies dimensionality change by moving contact portions from a two-dimensional horizontal plane arrangement to a three-dimensional spatial arrangement at different vertical heights. Specifically, the first contact portion is positioned at a first height while the second and third contact portions are positioned at a second height different from the first height, thereby breaking the coplanar configuration that causes resonance and eliminating electromagnetic wave interference without significantly complicating the overall structure.
2Ease of manufacture
If elastic arms and ground terminals are arranged on the same plane, then the manufacturing process is simplified, but resonance occurs reducing connector performance
Solution Approach 1:
The patent resolves this contradiction by transitioning from a planar arrangement to a spatial arrangement where contact portions are positioned at different vertical heights within the mating slot. This three-dimensional configuration maintains manufacturing feasibility while effectively preventing resonance and improving connector performance by eliminating electromagnetic wave interference.
3Reliability
If contact portions are positioned at different heights, then resonance is reduced and signal transmission is improved, but the structural complexity increases
Solution Approach 1:
The patent implements a controlled three-dimensional arrangement where contact portions are positioned at different vertical heights to reduce resonance. The first contact portion is at a first height and the second and third contact portions are at a second height, creating a simplified spatial configuration that effectively breaks electromagnetic wave resonance patterns while maintaining reasonable structural complexity.
4Ease of operation
If ground loops are formed at the same level, then the grounding path is direct and simple, but electromagnetic waves superpose and cause resonance
Solution Approach 1:
The patent applies dimensionality change by forming ground loops at different vertical heights rather than at the same level. The first ground loop is formed at a first height and the second ground loop is formed at a second height different from the first height, thereby maintaining efficient grounding paths while preventing electromagnetic wave superposition and resonance through vertical separation.
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 design effectively reduces grounding resonance and signal loss by ensuring non-superposition of electromagnetic waves and preventing short-circuiting, thereby enhancing signal transmission and connector performance.
Implementation Method 1
electromagnetic waves of the elastic arms and electromagnetic waves of the ground terminals easily resonate inside the mating slot
Implementation Method 2
electromagnetic waves of the elastic arms and electromagnetic waves of the ground terminals easily resonate inside the mating slot
Data Source
AI summary
An electrical connector includes an insulating body having a mating slot, which has a first inner wall and a second inner wall facing each other vertically. A ground terminal is fixed to the insulating body, and has a first contact portion exposed on a higher surface of the first inner wall. A grounding member has a second contact portion and a third contact portion both exposed on a lower surface of the first inner wall. The second contact portion is located closer to the second inner wall relative to the higher surface. In a vertical direction, the third contact portion is located farther away from the second inner wall relative to the higher surface. The second contact portion is grounded and conductively connected to the first electrical component inside the mating slot to form a first ground loop. The first contact portion is conductively connected to the first ground loop.