Smart Battery Charger Detects Pack Chemistry
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Solution Overview
Problem
Conventional battery pack chargers are designed to charge specific types of batteries and are incompatible with those having different physical characteristics or chemistries, leading to improper charging or failure to charge incompatible batteries, which can cause damage and inefficiency in charging multiple battery types with varying requirements.
Innovation Solution
A battery charger with mechanisms to determine the characteristics of connected battery packs, including electrical-characteristic sensors and specific terminal engagement, allows for the selection and application of appropriate charging regimes based on detected types, using a microprocessor to control charging and prevent damage through voltage decay sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional battery pack chargers are designed to charge specific types of batteries with matching features, then charging reliability for that specific battery type is improved, but adaptability to charge multiple battery types deteriorates
Solution Approach 1:
The charger is designed with multiple sets of charging terminals, each set configured to match specific battery pack types. The system can selectively engage different terminal sets based on the inserted battery type, enabling a single charger to serve multiple battery chemistries and configurations without requiring separate dedicated chargers for each type.
Solution Approach 2:
The charger incorporates a microprocessor that dynamically determines the battery pack type through sensors and terminal engagement detection. Based on the detected battery characteristics, the system dynamically selects and applies the appropriate charging regime, allowing the charger to adapt its charging parameters and terminal configuration in real-time rather than being fixed to a single battery type.
2Reliability
If conventional battery pack chargers include mechanisms to determine battery type, then charging safety is improved, but device complexity increases
Solution Approach 1:
The battery type determination mechanism is segmented into multiple independent sensing functions: terminal engagement detection, electrical characteristic sensing, and chemistry identification. Each sensor type independently contributes to the overall battery identification, allowing the system to determine battery type through a combination of simple, modular sensing elements rather than a single complex sensing system.
Solution Approach 2:
The charger incorporates feedback mechanisms where sensors continuously monitor battery characteristics during insertion and charging. The microprocessor receives feedback from these sensors and automatically adjusts the charging regime accordingly, enabling safe charging through continuous monitoring and adaptive control rather than requiring complex pre-programmed charging sequences.
Data Source
AI summary
A method of charging a battery pack is provided. The method includes: electronically connecting a battery pack to a charger; detecting information regarding the battery pack; determining an appropriate charging regime based on the detected information; and applying the charging regime to the battery pack. A battery charger may also provided. The battery charger includes: a first terminal for connecting to a battery pack; a second terminal for connecting to a battery pack, a microprocessor operatively connected to the terminals and configured to receive a signal from at least one terminal regarding a battery pack connected to the terminal and control the charger to select and apply a charging regime to the battery pack according to the signal.