Battery Assembly With Segmented Safety Units
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Solution Overview
Problem
Conventional power battery assemblies face challenges with complex parallel circuits that occupy excessive space and pose safety risks due to immediate power shut-off when a single battery fails, leading to inefficient power delivery and increased costs with spare battery systems.
Innovation Solution
An independent separating type power battery assembly utilizing a rack assembly and guiding strips to connect lithium batteries in parallel, with each battery equipped with a safety unit that can isolate and cut off faulty batteries, preventing immediate power termination and reducing space occupancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple batteries are connected in parallel in one box, then high voltage and big current can be provided to the mechanism, but the parallel circuit becomes complex and wires occupy too much space
Solution Approach 1:
The patent divides the battery system into multiple independent battery packs, each with its own safety unit. This segmentation allows each battery to be independently managed and protected, reducing the complexity of the overall parallel circuit while maintaining high power output capability through modular expansion.
2Reliability
If a fuse is used to cut off electric power when great current occurs, then safety is improved, but the electric power disappears immediately causing the vehicle to stop
Solution Approach 1:
The patent implements segmentation by providing individual safety units for each battery rather than a single fuse for the entire system. When a battery fails, only that specific battery is isolated while other batteries continue to provide power, maintaining system operation and power continuity.
Solution Approach 2:
Each battery is equipped with its own safety unit, creating local protection rather than global shutdown. This local quality approach ensures that safety issues in one battery do not affect the operation of other batteries, allowing the system to maintain power delivery from healthy batteries.
3Duration of action of moving object
If spare battery system is provided to avoid immediate power shut-off, then power continuity is maintained, but cost and space occupation increase
Solution Approach 1:
The patent uses segmentation to create independent battery units with individual safety mechanisms. This eliminates the need for spare batteries because the modular design with isolated safety units ensures that a single battery failure does not compromise the entire system, maintaining power continuity without additional space requirements.
Data Source
AI summary
A Battery Assembly comprises a rack assembly, a plurality of guiding strips, two polar heads, a plurality of lithium batteries and safety units. The guiding strips are connected to the polar heads and are disposed on the rack assembly, respectively. The rack assembly has a containing space for accommodating the lithium batteries, and each lithium battery is connected to the guiding strip by a guiding piece via one safety unit, such that the lithium batteries are connected in parallel, thus providing enough power with a small size. In addition, each safety unit can cut off the broken lithium battery separately, so as to avoid the immediate shut-off of the electric power.