Battery System External Output Lead-Plate Design
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Solution Overview
Problem
Existing battery systems for electric vehicles, such as electric motor-bikes, face issues with high electrical resistance leading to reduced discharge efficiency and increased power losses, inefficient space utilization, and a risk of accidental short circuits due to the proximity of positive and negative output leads.
Innovation Solution
A battery system with a robust output structure that separates positive and negative external outputs, utilizing lead-plates connected in series and parallel to reduce resistance and prevent short circuits, while efficiently utilizing space by exposing output terminals outside the case for easy connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If output leads are connected through a circuit board inside the external case, then the battery system can be assembled, but the electrical resistance increases and discharge efficiency decreases
Solution Approach 1:
The patent extracts the output leads from the internal circuit board connection and extends them directly to the external case surface. This removes the unnecessary circuit board connection path that caused high resistance, allowing the output leads to connect batteries directly to external terminals with minimal resistance, thereby reducing power loss and improving discharge efficiency.
Solution Approach 2:
The patent changes the connection dimension by extending output leads from internal 2D circuit board connections to 3D external protruding terminals. This dimensional change allows direct external access to battery outputs without passing through the circuit board, reducing resistance and improving electrical efficiency.
2Volume of moving object
If positive and negative output leads are placed close together for compact design, then space is saved, but the risk of accidental short circuit increases
Solution Approach 1:
The patent applies asymmetry by positioning positive and negative output terminals at different locations on the external case surface rather than symmetrically close together. This asymmetric arrangement increases the spatial distance between opposite polarity terminals, reducing the risk of accidental short circuits while still maintaining compact overall design.
Solution Approach 2:
The patent introduces insulating materials as intermediaries between positive and negative output terminals. These insulating structures act as mediators that prevent direct contact between opposite polarity leads, eliminating the short circuit hazard while allowing the terminals to remain in close proximity for space-efficient design.
3Strength
If output leads are connected internally through the circuit board, then the structure is compact, but the output structure lacks robustness and space utilization is inefficient
Solution Approach 1:
The patent performs preliminary action by extending the output leads outside the external case during the assembly process. This preliminary extension of leads to the external surface allows for robust external connections to be made before final assembly, creating a sturdy output structure that also efficiently utilizes space by eliminating internal routing constraints.
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 solution achieves low resistance connections, improved discharge efficiency, and effective prevention of short circuits, enabling high power output while optimizing space usage and ensuring a sturdy structure for the battery system.
Implementation Method 1
a plurality of lead-plates 3 connected to electrodes 1A at both ends of the batteries 1 to connect adjacent batteries 1 in series and parallel
Data Source
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AI summary
The battery system houses a battery assembly 10 in an external case 2. The battery assembly 10 has a battery holder 11 that disposes the plurality of batteries 1 in multiple rows and columns. External outputs 9, which take battery 1 output outside the battery system, are connected to output lead-plates 3X disposed at the output-sides of the batteries 1. Lead-plates 3 connect all the batteries 1 in a single column in parallel and adjacent columns of batteries 1 in series. Multiple columns of batteries 1 are connected in series, and output lead-plates 3X and external outputs 9 are disposed at the positive and negative sides. In addition, the output lead-plates 3X are provided with battery connecting sections 3A that connect a plurality of batteries 1 in parallel, and output extensions 3B attached to the sides of the battery connecting sections 3A that connect to the external outputs 9.