Battery Condition Detection via Internal Pressure Monitoring
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Solution Overview
Problem
It is challenging to detect battery conditions, such as bulging or readiness to burn or explode, in sealed electronic devices due to the inability to visually observe these signs from outside the device.
Innovation Solution
An electronic device with a battery management system, air pressure, and temperature sensors that monitor internal conditions before and during use, calculating pressure and temperature variations to generate alarms if thresholds are exceeded, prompting user action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is installed inside a sealed electronic device, then the device structure is compact and protected, but the ability to detect battery bulging or visible signs deteriorates
Solution Approach 1:
The patent introduces air pressure sensors and temperature sensors as intermediary detection devices inside the sealed electronic device. These sensors indirectly detect battery conditions (bulging, overheating) by measuring changes in the internal environment rather than directly observing the battery itself, thus maintaining both sealed structure and detection capability
Solution Approach 2:
The patent replaces direct visual inspection (mechanical observation) with electronic sensing systems. Instead of manually checking battery appearance, the system uses air pressure sensors to detect volume changes and temperature sensors to detect thermal conditions, substituting mechanical detection with electronic measurement
2Measurement precision
If multiple sensors are added to monitor internal conditions, then battery condition detection capability is improved, but device complexity increases
Solution Approach 1:
The patent makes the air pressure sensor serve multiple functions: detecting battery bulging, monitoring internal seal integrity, and inferring temperature changes through pressure-temperature relationships. This reduces the need for separate dedicated sensors for each parameter, thereby limiting complexity growth while maintaining comprehensive monitoring capability
Solution Approach 2:
The patent combines temperature and humidity compensation functions into the same sensor system. The air pressure sensor readings are processed together with temperature and humidity data to compensate for environmental effects, merging multiple monitoring functions into an integrated detection system rather than separate independent systems
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
Effectively detects potential battery issues by monitoring internal air pressure and temperature changes, alerting users to potential dangers or the need for maintenance, thereby preventing battery damage or explosion.
Implementation Method 1
obtain a first interior air pressure of a sealed electronic device before the sealed electronic device is used; obtain a second interior air pressure of the sealed electronic device when the sealed electronic device is being used
Implementation Method 2
obtain a first interior temperature of the sealed electronic device before the sealed electronic device is used; obtain a second interior temperature of the sealed electronic device when the sealed electronic device is being used
Data Source
AI summary
A method for detecting battery condition by monitoring air pressure and temperature both before and during the use of a sealed electronic device. A first air pressure is obtained before the device is powered on. A second air pressure is obtained during use of the device. A value of variations between readings is determined, and if the variation value in air pressure is greater than a preset value, an alarm is generated. An electronic device and a non-transitory storage medium are also provided.