Combined Breaker-Relay PDU for Current Threshold Control
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Solution Overview
Problem
Electrical power distribution in mobile applications faces challenges due to highly variable loads, thermal and mechanical stresses on fuses, complex electrical systems, and limited space and weight constraints, leading to integration complexities, increased failure points, and high costs.
Innovation Solution
A power distribution unit (PDU) with a breaker/relay system that includes a fixed and moveable contact, an armature, and a biasing member to control power flow, along with a current response circuit to manage current thresholds and auxiliary commands, enhancing reliability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate breakers and relays are used in mobile applications, then circuit protection and power distribution functions are provided, but the number of components increases leading to more failure points and integration complexities
Solution Approach 1:
The patent combines the breaker and relay into a single integrated component called a breaker/relay. This merging eliminates the need for separate breaker and relay components, reducing the total number of parts and interconnections. The integrated design provides both circuit protection (breaker function) and power distribution control (relay function) through one unit, thereby reducing failure points and simplifying integration in mobile applications.
2Adaptability or versatility
If multiple components are used in the electrical system, then specific functions are provided, but the number of interfaces and failure points increases
Solution Approach 1:
The breaker/relay is designed as a multi-functional component that performs both breaker (circuit protection) and relay (power distribution control) functions within a single unit. This universality allows the system to maintain diverse functionalities while reducing the number of separate interfaces required, as one integrated component replaces multiple individual components that would each require separate connections and interfaces.
3Adaptability or versatility
If complex electrical systems are used to provide multiple functions, then system capability is improved, but the weight and space requirements increase
Solution Approach 1:
By merging the breaker and relay into a single integrated component, the patent reduces the total weight of the electrical system. Instead of having separate breaker and relay components each with their own housing, contacts, and mounting structures, the combined breaker/relay consolidates these elements into one unit, thereby reducing overall weight while maintaining both circuit protection and power distribution control capabilities.
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 PDU reduces failure points, improves integration, and enhances reliability by managing current thresholds and auxiliary commands, thereby reducing downtime and costs in mobile applications.
Implementation Method 1
a first biasing member biasing the armature into one of the first position or the second position
Implementation Method 2
a current response circuit structured to determine a current in the power bus
Data Source
AI summary
Mobile applications with a combined breaker and relay can include a power distribution unit, a current source circuit, and a voltage determination circuit. A combined breaker and relay can be configured to interrupt a motive power circuit for an electrical vehicle system. A combined breaker and relay can include a plurality of fixed contacts, a plurality of movable contacts, a plurality of amateurs, and a current response circuit.