Battery Pack Coolant Leak Height Detection Using Resistor Levels
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Solution Overview
Problem
Conventional battery packs face challenges in accurately detecting coolant leakage and determining its height, which can lead to temperature control issues and potential electrical incidents.
Innovation Solution
An apparatus with resistors disposed at different heights within the battery pack, connected to a power supply and a processor, detects coolant leaks by measuring changes in resistance values, allowing for the determination of leakage height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional coolant leakage detection methods are used, then coolant leakage can be detected, but the leakage height cannot be accurately determined
Solution Approach 1:
The detection method segments the coolant leakage detection into multiple height levels by placing resistors at different heights (first height, second height, third height) within the battery pack. Each resistor corresponds to a specific height level, allowing the system to determine not just that leakage occurred but also the specific height at which coolant contact was detected, thereby accurately determining leakage height.
2Measurement precision
If separate coolant leakage sensors are used, then detection accuracy improves, but device complexity and cost increase
Solution Approach 1:
The resistor serves multiple functions: it acts as both a standard electrical component for battery pack operation and as a coolant leakage detection sensor. By utilizing the existing resistor structure and its electrical properties (resistance change upon coolant contact), the system achieves leakage detection functionality without adding separate dedicated sensors, thereby reducing device complexity while maintaining detection accuracy.
Solution Approach 2:
The resistor automatically detects coolant leakage by utilizing its own physical property change (resistance variation) when contacted by coolant. The detection is performed by the existing component itself rather than requiring an external sensing mechanism, simplifying the overall system configuration.
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
This solution enables accurate detection of coolant leaks and their heights, reducing detection errors and providing cost-effective and simple configuration compared to separate sensors, while maintaining battery pack performance.
Implementation Method 1
the at least one resistor is configured to be connected to and receive power from a power supply, and a processor configured to receive an electrical signal from the at least one resistor, and detect a coolant leak based on the electrical signal received from the at least one resistor
Data Source
AI summary
An apparatus for detecting coolant leakage that can accurately detect the coolant leakage height in the process of detecting coolant leakage in the event of coolant leakage in a battery pack. The apparatus can detect leakage of a coolant flowing through a battery, and includes a detection resistor unit provided in the battery pack and including a resistor, the detection resistor unit configured such that the resistor is disposed at different heights from a lower end of the battery pack toward an upper end of the battery pack and the resistor comes into contact with the coolant, a power supply unit configured to supply power to the detection resistor unit, and a detection unit configured to connect to the detection resistor unit, and detect whether the coolant leaks and the coolant leakage height based on an electrical signal received from the detection resistor unit.