Photoelectric Adapter Integrating Optical and Electrical Connectors

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Solution Overview

Problem

Conventional optical power supply systems cannot be connected to electrical devices without an optical connection part, limiting their integration with devices having only conventional electrical connections.

Innovation Solution

The introduction of a photoelectric adapter system that uses semiconductor lasers and photoelectric conversion elements within optical fiber cables to convert electrical power into optical energy and vice versa, enabling the connection of optical power supply systems to electrical devices through existing electrical connections, utilizing semiconductor materials with high photoelectric conversion efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional electrical connection parts are used in electrical devices, then the devices can be easily manufactured and operated, but optical power supply systems cannot be connected to these devices

Engineering Contradiction:
Improvecompatibility with optical power supply systemsVSAvoidstructure of connection parts
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines electrical connection functionality and optical connection functionality into a single integrated connector. The connector includes both electrical contact elements for electrical signals and optical elements (such as optical fibers or light-emitting components) for optical power supply, allowing one connector to perform both electrical and optical functions simultaneously, thereby enabling compatibility with optical power supply systems without requiring separate connection components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector is designed with multi-functionality to serve both electrical connection and optical power supply purposes. It can handle electrical signals through conventional contact elements while simultaneously providing or receiving optical power through integrated optical elements, making it universally applicable to both traditional electrical devices and optical power supply systems

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

2Loss of energy

If optical fiber cables are used for power supply, then power transmission efficiency is improved, but conventional electrical devices without optical connection parts cannot be connected

Engineering Contradiction:
Improvepower transmission lossVSAvoidconnectability to conventional devices
Core Design Contradiction:
Loss of energyVSEase of operation

Solution Approach 1:

The connector merges electrical connection capabilities with optical connection capabilities into a single integrated component. This allows optical fiber cables to be connected to conventional electrical devices through the integrated connector, which provides both electrical contacts for signal transmission and optical elements for power supply, thereby enabling connectability to conventional devices while maintaining the energy efficiency benefits of optical power transmission

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If photoelectric conversion elements are integrated into connectors, then optical power can be transmitted through electrical connectors, but the connector structure becomes more complex

Engineering Contradiction:
Improveability to transmit optical powerVSAvoidconnector structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connector employs a nested structure where optical elements (such as optical fibers or light-emitting components) are integrated within or alongside the electrical connection elements. The optical components are positioned within the connector housing in a space-efficient manner, allowing optical power transmission functionality to be incorporated without significantly increasing the overall connector size or structural complexity

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

Enables the efficient transmission of power and data over optical fibers, allowing for the integration of optical power supply systems with electrical devices, improving connectivity and reliability while maintaining high photoelectric conversion efficiency.

Implementation Method 1

a power sourcing equipment (PSE) device including a semiconductor laser that oscillates with electric power input, thereby outputting feed light

Methodology Applied
Scientific EffectLight emission from semiconductor laser: Laser

Implementation Method 2

a powered device including a photoelectric conversion element that converts the feed light transmitted through the optical fiber into electric power

Methodology Applied
Scientific EffectPhotoelectric conversion: Photovoltaic Effect

Data Source

PatentEP3748875B1Photoelectric adapters and optical transmission cable capable of receiving and outputting electricity
Publication Date: 2023.11.22 KYOCERA CORP
  • EP3748875B1 patent drawingFigure 1
  • EP3748875B1 patent drawingFigure 2
  • EP3748875B1 patent drawingFigure 3

AI summary

A photoelectric adapter (500) includes a power sourcing equipment (PSE) device (110), an optical connector connection part (520) and an electrical connector (510). The electrical connector is connectable to an electrical connector connection part (410) of an electrical device (400). The PSE device includes a semiconductor laser (111) that oscillates with electric power, thereby outputting feed light. The PSE device is driven by receiving the electric power supplied from the electrical device through the electrical connector, and outputs the feed light from the optical connector connection part. Another photoelectric adapter (700) includes a powered device (310), an optical connector connection part (720) and an electrical connector (710). The powered device includes a photoelectric conversion element (311) that converts feed light into electric power. The powered device receives the feed light supplied through the optical connector connection part, converts the feed light into the electric power, and outputs the electric power from the electrical connector.