PoE Connector Device for Safe Multi-Device Power Distribution
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Solution Overview
Problem
The existing Power over Ethernet (PoE) technology is limited in transferring high power levels, posing safety risks and restricting the types of devices that can be powered, as it exceeds safety standards and can lead to overheating and potential fires when using standard Ethernet-cabling infrastructure for high-power devices.
Innovation Solution
A PoE connector device that utilizes multiple power wire pairs to power both a display device and additional devices, employing internal and external power supply components, DC converters, and power management to distribute power efficiently, allowing for simultaneous use of PoE modes A and B, and incorporating features like voltage detection and power classification to safely supply power to multiple low-power devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If greater power is transferred using PoE to accommodate high-energy devices, then the types of devices that can be powered are broadened, but safety risks increase due to overheating and potential fires
Solution Approach 1:
The patent segments the power delivery function by providing separate first and second connectors, each handling distinct power wire pairs. This allows independent power distribution to different devices, enabling better control over power allocation and reducing the risk of overheating any single device or cable segment.
Solution Approach 2:
The PoE connector device acts as an intermediary between the power source and multiple powered devices. It includes power management circuitry that detects and classifies power requirements of connected devices, then safely distributes appropriate power levels, preventing excessive power delivery that could cause overheating or fire hazards.
2Device complexity
If multiple powered devices are connected through a single PoE cable, then the need for additional cables and ports is reduced, but the complexity of power distribution increases
Solution Approach 1:
The connector device segments the Ethernet cable into separate power wire pairs (first set and second set), with each pair dedicated to a specific powered device. This segmentation simplifies the cabling infrastructure by utilizing existing cable pairs independently, while the internal switching matrix manages power distribution automatically based on device requirements.
Solution Approach 2:
The PoE connector device provides multi-functionality by simultaneously supporting multiple PoE modes (Mode A, Mode B, and Gigabit/Ethernet modes) and powering different types of devices through its multiple connectors. This universal design allows a single device to replace multiple dedicated power sources, simplifying the overall system architecture.
3Ease of manufacture
If PoE power is distributed to multiple devices, then the need for additional power outlets is reduced, but power management and detection become more complex
Solution Approach 1:
The PoE connector device incorporates feedback mechanisms through its power management circuitry, which continuously detects the power requirements of connected devices via the Ethernet cable pairs. The system automatically classifies devices and adjusts power delivery accordingly, providing real-time feedback control that simplifies installation while managing complex power distribution requirements.
Solution Approach 2:
The connector device enables self-service power management by automatically detecting and classifying connected devices, then independently allocating appropriate power levels without requiring manual configuration. The system performs voltage detection, power classification, and power distribution autonomously, reducing installation complexity while handling sophisticated power management tasks.
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 safe and efficient powering of multiple low-power devices using existing PoE infrastructure, reducing the need for additional cables and ports, while ensuring compliance with safety standards and minimizing energy waste, thus broadening the range of devices that can be powered without overheating or fire risks.
Implementation Method 1
Power over Ethernet (PoE) is a known technology that allows network cables to carry electrical power. Thus, PoE-enabled devices can receive power as well as data through the twisted pairs of an Ethernet cable.
Implementation Method 2
Power sourcing equipment injects power onto these pins via the centre tap of internal signal coupling transformers.
Data Source
AI summary
A Power over Ethernet, PoE, connector device (100) comprises a first connector (112) for, in use, connecting a first set comprising at least one power wire pair (110A, 110D) of a PoE cable (102) to a first powered device (116). The PoE connector device further comprises a second connector (114) for, in use, connecting a second set comprising at least one other power wire pair (110B, 110C) of the PoE cable to at least one further powered device (118). Embodiments also provide a display device and a computing system.