Four-in-one Electrical Connector Plug with EMI Shielding

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Solution Overview

Problem

Conventional electronic devices require multiple bulky ports for USB2.0, USB3.0, and MiNi DP connections, increasing space and cost, and failing to efficiently manage electromagnetic interference.

Innovation Solution

A compact four-in-one electrical connector plug with a casing, circuit board, and metal housing that integrates power, USB2.0, USB3.0, and MiNi DP functions, featuring a stepped terminal design and metal plate for electromagnetic interference prevention, reducing component count and manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate ports (USB2.0, USB3.0, MiNi DP) are used for different functions, then functional versatility is improved, but device volume and structural complexity increase

Engineering Contradiction:
Improvefunctional versatilityVSAvoiddevice volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent combines multiple separate ports (USB2.0, USB3.0, MiNi DP) into a single integrated electrical connector plug. The plug contains multiple terminal groups that can simultaneously support power transmission, USB2.0, USB3.0, and MiNi DP functions, eliminating the need for multiple separate ports and reducing device volume.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The electrical connector plug is designed with multi-functional capability, where a single plug can perform multiple functions including power transmission, USB2.0 data transmission, USB3.0 high-speed data transmission, and MiNi DP display output. This universal design allows one connector to replace multiple specialized connectors.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate ports are used for different functions, then functional versatility is improved, but manufacturing cost increases

Engineering Contradiction:
Improvefunctional versatilityVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent integrates multiple port functions into a single connector plug, reducing the total number of components that need to be manufactured and assembled. This consolidation simplifies the manufacturing process and reduces costs associated with producing and installing multiple separate ports.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

By designing a universal plug that can handle multiple functions through its multiple terminal groups, the invention eliminates the need to manufacture separate specialized connectors for each function, thereby reducing overall manufacturing complexity and cost.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If ground terminals are mounted between terminal groups, then electromagnetic interference prevention is improved, but device volume increases

Engineering Contradiction:
Improveelectromagnetic interferenceVSAvoiddevice volume
Core Design Contradiction:
Object-affected harmful factorsVSVolume of moving object

Solution Approach 1:

The patent strategically places ground terminals in specific locations between different terminal groups within the connector plug. This localized arrangement of ground terminals provides electromagnetic shielding exactly where needed between high-frequency signal terminals, preventing interference without requiring a complete redesign of the entire connector structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Ground terminals serve as intermediary elements between different terminal groups, providing electromagnetic shielding and isolating high-frequency signal transmission paths. These ground terminals act as mediators that prevent electromagnetic interference from one terminal group affecting another, while maintaining a compact overall structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 a cost-effective, compact, and lightweight connector that efficiently transmits power and high-frequency signals while preventing electromagnetic interference, enhancing market compatibility and reducing thermal issues.

Implementation Method 1

a metal plate inserted between the power contacts and the output/input contacts of the circuit board to electrically connect to the ground terminal; and a metal housing composed of a front housing and a rear housing to entirely enclose the casing and to electrically connect to the metal plate such that the metal plate is able to transmit electromagnetic interference out via the metal housing

Methodology Applied
Scientific EffectElectromagnetic interference transmission: Electromagnetic Induction

Data Source

PatentUS8747149B2Four in one electrical connector plug
Publication Date: 2014.06.10 ADVANCED CONNECTEK INC
  • US8747149B2 patent drawing
  • US8747149B2 patent drawing
  • US8747149B2 patent drawing

AI summary

An electrical connector plug includes a casing an output/input port mounted having multiple upper terminals and multiple lower terminals, a trough defined between the upper terminals and the lower terminals, a circuit board inserted in the trough of the casing and having, a metal plate electrically connected to the ground terminal and a metal housing to entirely enclose the casing and to electrically connect to the metal plate such that the metal plate is able to transmit electromagnetic interference out via the metal housing.