Electric Connector Terminal Layout for High-Frequency Noise Shielding
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Solution Overview
Problem
In high frequency signal transmission, resonance occurs in terminals connected to ground potential due to electric field radiation, leading to radiation noise and interference with signal transmission.
Innovation Solution
An electric connector set is designed with a wall-shaped terminal of the same height as the connector set, positioned between the first engaging terminal for high frequency transmission and other engaging terminals, to suppress resonance by shielding electromagnetic waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a terminal is disposed next to a high frequency signal terminal for ground connection, then noise immunity is improved, but resonance occurs due to electric field radiation causing radiation noise and signal interference
Solution Approach 1:
A wall-shaped terminal is introduced as an intermediary structure between the high frequency signal terminal and the ground terminal. This wall-shaped terminal acts as a barrier that blocks the electric field radiation from the high frequency signal terminal, preventing it from reaching the ground terminal and causing resonance. The wall-shaped terminal effectively mediates the electromagnetic interaction between adjacent terminals, eliminating the harmful resonance effect while maintaining proper grounding.
Solution Approach 2:
The terminal structure is segmented into three distinct parts: the high frequency signal terminal, the wall-shaped terminal, and the ground terminal. By dividing what would traditionally be a direct adjacent arrangement into three separate segments with the wall-shaped terminal in between, the electromagnetic coupling is reduced and resonance is prevented. The wall-shaped terminal creates spatial separation that disrupts the resonant path.
2Reliability
If multiple terminals are disposed in close proximity for spring engagement, then connection reliability is improved, but electromagnetic interference increases due to resonance
Solution Approach 1:
The wall-shaped terminal serves as an intermediary barrier that physically and electromagnetically separates adjacent terminals while maintaining their structural proximity for reliable spring engagement. This allows the terminals to remain close for mechanical reliability while the wall-shaped terminal blocks electromagnetic interference, resolving the contradiction between connection reliability and electromagnetic compatibility.
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 effectively reduces resonance and radiation noise in high frequency transmission, improving signal integrity and noise immunity.
Implementation Method 1
a wall-shaped terminal that is disposed between the first engaging terminal and the second engaging terminal in the first direction, extends along a second direction crossing the first direction and a fitting direction
Data Source
AI summary
An electric connector set includes a first engaging terminal having spring engagement of a first projecting terminal of a first connector and a first recessed terminal of a second connector, a second engaging terminal having spring engagement of a second projecting terminal of the first connector and a second recessed terminal of the second connector, and disposed in a first direction, and a wall-shaped terminal disposed between the first and second engaging terminals in the first direction, extends along a second direction crossing the first direction and a fitting direction over a region including an outer shape of a projection region in the first direction where the first projecting and recessed terminals are spring-engaged, and has a similar height as the electric connector set. Locking mechanisms to retain connector engagement may be used and may be formed of a same member as the wall shaped terminal.