Connector ESD Protection via Integrated Conductive Traces
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Solution Overview
Problem
Existing electrical connectors lack robust electrostatic discharge (ESD) protection, particularly in constrained applications like aerospace and defense systems, where traditional ESD shields may not provide adequate assurance against damage from ESD.
Innovation Solution
An electrical connector assembly featuring a conductive shell connected to a ground plane via a dielectric member with interconnected conductive traces on its front and rear surfaces, which captures ESD and directs it safely to ground, minimizing the risk of damage to connectors and other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional ESD shield (plate, bar) is provided in the connector, then ESD protection is improved, but device complexity and size increase
Solution Approach 1:
The patent combines the ESD protection function with the existing connector housing structure. The housing itself is configured to provide ESD protection through integrated features such as conductive elements and grounding pathways, eliminating the need for separate ESD shields and reducing overall device complexity
Solution Approach 2:
The connector housing serves multiple functions: it provides mechanical support, electrical insulation, and ESD protection. By making the housing multi-functional, the patent eliminates dedicated ESD shield components while maintaining robust ESD protection capability
2Reliability
If a traditional ESD shield is provided in the connector, then ESD protection is improved, but manufacturing difficulty increases
Solution Approach 1:
The ESD protection features are integrated into the housing manufacturing process itself, such as incorporating conductive traces during molding or applying conductive coatings during assembly. This eliminates separate ESD shield installation steps and simplifies manufacturing
Solution Approach 2:
The housing structure inherently provides ESD protection through its design features, requiring no additional components or complex assembly steps. The grounding pathways and conductive elements are built-in, allowing the connector to self-protect against ESD without external intervention
3Reliability
If a traditional ESD shield is provided in the connector, then ESD protection is improved, but cost increases
Solution Approach 1:
The patent integrates ESD protection functionality into the existing housing structure, eliminating the need for separate ESD shield components. This reduces material costs, assembly costs, and overall manufacturing expenses while maintaining effective ESD protection
Solution Approach 2:
The patent uses cost-effective materials and methods for ESD protection, such as standard conductive plastics or simple conductive coatings, rather than expensive specialized ESD shield materials. The solution prioritizes cost-effectiveness while achieving adequate protection
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 provides enhanced ESD protection for electrical connectors, effectively preventing damage from electrostatic discharges and is suitable for use in line replaceable units or systems, while maintaining a cost-effective approach.
Implementation Method 1
When connectors are being mated, opposite charges at the connector interface may result in an electrostatic discharge (ESD) between the two connectors
Implementation Method 2
The dielectric member includes a conductive trace that is electrically connected to the shell
Data Source
AI summary
An electrical connector assembly includes a conductive shell and a connector having a dielectric housing disposed within the shell. The housing has a mating face configured to receiver the contacts of a mating connector and a mounting face configured to mount the connector to a circuit board. A dielectric member is disposed proximate the mating face of the connector and is connected to the shell. The dielectric member includes apertures configured to receive the contacts of the mating connector therethrough when the mating connector is mated with the connector. The dielectric member includes a conductive trace that is electrically connected to the shell.