USB Receptacle Connector Assembly with Nested Pin Layout and Metal Shield

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Solution Overview

Problem

USB transmission interfaces, particularly USB 2.0 and USB 3.0, face limitations in data transfer efficiency due to electromagnetic interference (EMI) and power consumption, necessitating a receptacle connector assembly that enhances transmission rates while minimizing EMI and complying with USB specifications.

Innovation Solution

A receptacle connector assembly comprising multiple insulative housings, sets of contact pins, a metal contact, and a metal shell, designed to provide stable high-data-rate transmission by optimizing the arrangement of contact pins and housing structures to reduce EMI and improve power efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If USB 2.0 specification is used, then compatibility is maintained, but transmission rate is limited to 480 Mbps

Engineering Contradiction:

Improvetransmission rateVSAvoidspecification compatibility

Core Design Contradiction:

SpeedVSAdaptability or versatility

Solution Approach 1:

The receptacle connector assembly is designed to support both USB 2.0 and USB 3.0 specifications simultaneously. The connector includes contact pins arranged to accommodate both standards, allowing the same hardware interface to function across multiple USB versions without requiring separate connectors for each specification.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The contact pins are arranged in a nested configuration where USB 2.0 contact pins are positioned within the broader USB 3.0 pin layout. This nesting allows the connector to physically accommodate both USB 2.0 and USB 3.0 plug connectors, enabling backward compatibility while supporting higher-speed transmission when USB 3.0 devices are connected.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Speed

If higher transmission rate is achieved, then data transfer efficiency improves, but electromagnetic interference increases

Engineering Contradiction:

Improvetransmission rateVSAvoidelectromagnetic interference

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

A metal shield is introduced as an intermediary element between the contact pins and the external environment. This shield acts as a barrier that blocks electromagnetic interference from affecting the high-speed data transmission, allowing USB 3.0 speeds to be achieved without the harmful EMI that typically accompanies higher transmission rates.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The metal shield creates an electromagnetically inert environment around the contact pins. By enclosing the sensitive high-speed signal paths within this shielded space, the connector establishes a protected transmission channel that is isolated from external electromagnetic disturbances, enabling stable high-rate data transfer.

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

Data Source

PatentUS20100159746A1Receptacle connector assembly

Publication Date: 2010.06.24 ADVANCED CONNECTEK INC

AI summary

A receptacle connector assembly comprises an insulative housing, two sets of first contact pins, two sets of second contact pins, a metal contact and a metal shell. The first and the second contact pin respectively comply with specification of USB 3.0 and USB 2.0 and transmit data stability at high transmission rate.