Fuse Array With Isolated Discrete Circuits For Multi-Battery Vehicles
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Solution Overview
Problem
Conventional fuse arrays for vehicle electrical systems have a single discrete circuit, which is inadequate for vehicles with multiple batteries, such as start-stop vehicles, where separate battery power distribution is required for efficient power management and protection against current surges.
Innovation Solution
A fuse array with multiple discrete circuits, each isolated from the other, allowing battery power from one battery to be provided to one set of downstream components and from another battery to another set, using internal bus bars and fuses to manage and distribute power efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single discrete circuit is used in the fuse array, then the device complexity is reduced and manufacturing is simplified, but the adaptability for multiple battery vehicle electrical systems is insufficient
Solution Approach 1:
The fuse array is divided into multiple discrete circuits (first discrete circuit and second discrete circuit) that are electrically isolated from each other. Each circuit can independently handle power from different batteries, enabling the fuse array to adapt to multiple battery vehicle electrical systems while maintaining manageable complexity through modular design
2Adaptability or versatility
If multiple discrete circuits are added to the fuse array for multiple battery applications, then the adaptability and power distribution capability are improved, but the device complexity increases
Solution Approach 1:
The fuse array is designed with multiple discrete circuits that can universally handle power distribution from different battery configurations. The first discrete circuit handles power from the first battery while the second discrete circuit handles power from the second battery, allowing a single device to perform multiple power distribution functions simultaneously
3Reliability
If electrically isolated discrete circuits are implemented, then the reliability and independence of power paths are improved, but the manufacturing precision and assembly difficulty increase
Solution Approach 1:
The fuse array is segmented into electrically isolated discrete circuits with separate internal bus bars (first internal bus bar and second internal bus bar) and distinct fuse arrangements. This segmentation ensures that current paths are electrically isolated, improving reliability by preventing cross-contamination of faults while maintaining manageable manufacturing through modular construction
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 efficient power distribution and protection from current surges in vehicle electrical systems with multiple batteries, improving reliability and adaptability for start-stop, electric, and hybrid vehicles by allowing independent power management from multiple batteries.
Implementation Method 1
The first and second discrete circuits are electrically isolated from one another within the fuse array
Implementation Method 2
a first internal bus bar secured on the outside of the insulative housing and a first fuse contained within the insulative housing; and a second discrete circuit for providing battery power from the second vehicle battery to a second downstream component, the second discrete circuit includes a second internal bus bar secured to the outside of the insulative housing
Data Source
AI summary
A fuse array for use in a vehicle electrical system having more than one battery, such as in a start-stop vehicle that automatically shuts off an engine when the vehicle comes to a stop and automatically restarts the engine when a driver starts driving again. The fuse array includes first and second discrete circuits, where the discrete circuits include their own internal bus bars and are electrically isolated from one another, even though they are part of the same fuse array. This enables the fuse array to independently provide battery power to different downstream electrical components, such as a power distribution device and various high amperage components, while still utilizing a single compact assembly.