Battery Pack Shock Sensing Through Integrated BMS Voltage Detection
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Solution Overview
Problem
Existing battery packs lack the ability to detect and respond to external shocks, compromising safety.
Innovation Solution
A battery pack with a shock detection module that includes a non-conductive barrier wall, measurement resistors, and a control unit to measure and respond to varying shock levels by adjusting operations based on voltage changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shock detection module is added to the battery pack, then safety against external shock is improved, but device complexity increases
Solution Approach 1:
The shock detection module is integrated into the existing BMS structure by combining the measurement resistor pattern, non-conductive barrier wall, and voltage measurement unit with the battery management system. This merging approach allows shock detection functionality to be added without creating a completely separate system, thereby improving safety while minimizing the increase in device complexity.
Solution Approach 2:
The BMS structure is designed to serve multiple functions: it continues to perform its traditional battery monitoring and management tasks while simultaneously incorporating shock detection capabilities through the integrated measurement resistor pattern and voltage measurement unit. This multi-functionality resolves the contradiction by making the existing system do both jobs rather than adding purely redundant complexity.
2Measurement precision
If step-by-step shock detection is implemented through voltage measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The shock detection system replaces complex mechanical shock sensors with an electrical measurement approach. By using a measurement resistor pattern and voltage measurement unit that leverages the existing BMS electrical infrastructure, the system achieves precise step-by-step shock detection through voltage changes without introducing complex mechanical detection mechanisms.
Solution Approach 2:
The measurement resistor pattern is designed to utilize the existing voltage distribution in the BMS circuitry. The shock detection function serves itself by using the same power and signal lines already present in the battery management system, eliminating the need for separate power supplies or additional complex measurement infrastructure.
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
Enhances safety by detecting and controlling battery operations according to shock strength, preventing potential damage from external impacts.
Implementation Method 1
measuring a distributed voltage at a connection point between a reference resistor and a measurement resistor pattern
Data Source
Figure 1~2
Figure 3
Figure 4(a)~4(b)
AI summary
The present invention relates to a battery pack with a shock detection module, and to a battery pack configured to detect a strength of a shock applied to the battery pack step by step by applying a shock detection module structure to a BMS and perform BMS control for this.