Electrical Connector Assembly With Insulated Noise Shielding

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Solution Overview

Problem

Conventional electrical connectors with high-speed signal ports are prone to signal interference and short circuits due to noise overflow and contamination from thread or lint, which existing shielding materials like conductive foam cannot effectively prevent.

Innovation Solution

An electrical connector assembly featuring a circuit board with a conductive region and an insulating member made of elastic material, which surrounds the connection port and includes a metal layer, separates the conductive member from the port to prevent noise overflow and lint contact, using a compressible conductive foam to ensure electrical conduction while avoiding short circuits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conductive or shielding material such as conductive foam is arranged on the periphery of the connection port to shield against noise, then noise shielding capability is improved, but thread or lint is produced during cutting which may contact the connection port and cause short circuits

Engineering Contradiction:
Improvenoise shielding capabilityVSAvoidshort circuit risk
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

An insulating member is introduced as an intermediary component between the conductive shielding material and the connection port. This insulating member prevents direct contact between the conductive foam and the connection port, thereby eliminating the short circuit risk while maintaining the noise shielding function of the conductive material.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The shielding structure is divided into two separate functional components: a conductive shielding layer for noise protection and an insulating member for electrical isolation. This segmentation allows each component to perform its specific function without causing harmful side effects, resolving the contradiction between shielding effectiveness and safety.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If connection port is exposed to allow signal transmission, then signal connectivity is improved, but signal may overflow to other positions and generate noise

Engineering Contradiction:
Improvesignal connectivityVSAvoidsignal interference
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The insulating member is designed with differentiated local properties: an inner surface that contacts the connection port to prevent signal overflow, and an outer surface that interfaces with the conductive shielding material. This local quality differentiation allows the insulating member to simultaneously support signal transmission while preventing interference.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The insulating member is arranged to surround the connection port, creating a nested structure where the connection port is embedded within the insulating member, which in turn is surrounded by the conductive shielding material. This nested arrangement provides multiple layers of protection while maintaining signal connectivity.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 shields against noise interference and prevents short circuits by isolating the conductive member from the connection port, ensuring reliable signal transmission and preventing contamination-induced failures.

Implementation Method 1

the insulating member is arranged on the first circuit board, and surrounds an outer periphery of the first connection port. The insulating member includes a metal layer, arranged on an outer surface of the insulating member

Methodology Applied
Scientific EffectElectrical insulation: Electrical Resistance

Implementation Method 2

the insulating member can separate the conductive member from the (first) connection port, and can also prevent thread or lint of the conductive member from contacting the (first) connection port, so as to avoid a short circuit

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Implementation Method 3

a conductive or shielding material such as a conductive foam is arranged on the periphery of the connection port

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 4

the insulating member is made of an elastic material

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11791576B2Electrical connector assembly and electrical connector thereof
Publication Date: 2023.10.17 PEGATRON
  • US11791576B2 patent drawing
  • US11791576B2 patent drawing
  • US11791576B2 patent drawing

AI summary

The present invention discloses an electrical connector and an electrical connector assembly. The electrical connector includes a circuit board, a connection port, and an insulating member. The circuit board has a conductive region, located on a surface of the circuit board. The connection port is arranged on the surface of the circuit board, and the connection port is electrically connected to the circuit board. The insulating member is arranged on the circuit board, and surrounds an outer periphery of the connection port. The insulating member includes a metal layer, arranged on an outer surface of the insulating member.