Power Distribution Circuit Limiter for Outlet Safety
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Solution Overview
Problem
In environments with multiple interconnected devices, such as conference or training rooms, there is a challenge in efficiently providing electrical power without overloading outlets or creating tangled cable messes, often requiring multiple power strips which can lead to safety hazards and non-compliance with regulatory standards.
Innovation Solution
An electrical power distribution system with a control unit that limits the number of power cable assemblies that can be energized by using a voltage sensing circuit, which detects the number of connected assemblies and prevents energization when a predetermined threshold is exceeded, thereby preventing power overloads and ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple power strips are used to provide electrical power to multiple devices, then the number of available power outlets increases, but the complexity of wire management increases and safety hazards arise from improper daisy-chaining
Solution Approach 1:
The power distribution system is divided into modular power cable assemblies, each with a controlled number of outlets. The system segments the total power capacity across multiple modules, allowing flexible configuration while maintaining control over the number of active outlets through the controller unit.
Solution Approach 2:
The controller unit monitors the number of connected power cable assemblies and automatically controls energization based on this feedback. When the maximum number of assemblies is reached, the controller prevents further energization, providing real-time feedback to users through indicators and eliminating the need for complex manual wire management.
2Quantity of substance
If power cable assemblies are daisy-chained to increase the number of outlets, then more devices can be powered, but regulatory standards are violated and safety hazards increase
Solution Approach 1:
The system establishes a predetermined maximum number of power cable assemblies that can be connected before allowing operation. This preliminary limitation is built into the controller, which prevents energization when the maximum is reached, ensuring compliance with regulatory standards before any safety hazard can occur.
Solution Approach 2:
The controller unit acts as an intermediary between the power source and the power cable assemblies. It mediates the power distribution by monitoring connections and selectively energizing assemblies, ensuring that regulatory limits are never exceeded while still allowing maximum safe utilization of power capacity.
3Reliability
If the number of power cable assemblies is limited to ensure safety, then compliance with standards is maintained, but the flexibility to accommodate varying power needs is reduced
Solution Approach 1:
The system dynamically adjusts power distribution based on the number of connected assemblies. Within the safe, predetermined limit, the system is fully adaptive and allows any combination of assemblies to be connected and energized. This dynamic control maintains safety while maximizing flexibility for varying power needs up to the established capacity.
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 system effectively limits the number of power cable assemblies that can be connected, preventing power overloads and ensuring safety while allowing for convenient use of interchangeable power cable assemblies, reducing the risk of tangled cables and compliance with regulatory standards.
Implementation Method 1
a voltage sensing circuit in which the applied voltage will drop in a predictable or known manner that corresponds to the number of power cable assemblies that are electrically connected in the circuit
Data Source
AI summary
An electrical power distribution system automatically limits the number of substantially similar or identical power cable assemblies that are electrically energizable from a power source. A control unit is connected between the power source and the power cable assemblies, and limits the number of power cable assemblies that can be energized in the system by sensing the voltage in a sensing circuit. An applied voltage in the sensing circuit changes in a predictable manner corresponding to the number of power cable assemblies that are electrically connected in the circuit. Each power cable assembly includes an impedance element that is added to the sensing circuit when the corresponding power cable assembly is coupled to the system, and once the detected voltage is beyond a predetermined threshold value, the control unit will ensure that the power cable assemblies are not energized by the power source.