Battery Cell Temperature Sensing With Shared Image Sensor Optics
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Solution Overview
Problem
Existing battery temperature detection systems for electric vehicles face high throughput of temperature information and instability due to multiple light guide plates and sensors, leading to increased manufacturing costs and potential measurement errors.
Innovation Solution
A system with overlapping light guide plates and a single image sensor that detects electromagnetic waves reflected from these plates to reduce temperature information throughput and improve stability, using a calculation unit to determine abnormal temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple light guide plates with independent image sensors are used to monitor battery cell temperatures, then temperature measurement coverage is improved, but temperature information throughput increases and measurement stability deteriorates
Solution Approach 1:
The patent combines multiple light guide plates with a single image sensor instead of using independent sensors for each light guide plate. This merging approach reduces the total number of sensors while maintaining comprehensive temperature monitoring coverage across multiple battery cells, thereby reducing temperature information throughput and improving measurement stability.
Solution Approach 2:
The single image sensor is designed to serve multiple light guide plates simultaneously, making it a multi-functional component. This universal sensor can detect electromagnetic waves from different light guide plates, enabling one sensor to perform the function previously requiring multiple separate sensors.
2Measurement precision
If multiple light guide plates with independent image sensors are used, then temperature detection capability is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent merges multiple light guide plates into a single integrated system that uses one shared image sensor. This reduces device complexity by eliminating redundant sensor components and simplifies the overall system architecture while preserving the temperature detection capabilities provided by multiple light guide plates.
Solution Approach 2:
The image sensor is designed as a universal component capable of detecting electromagnetic waves from multiple light guide plates. This multi-functionality reduces the total component count and simplifies manufacturing processes while maintaining comprehensive temperature monitoring precision.
3Measurement precision
If multiple independent temperature sensors are used to measure temperatures at different points, then measurement coverage is improved, but temperature information throughput increases causing instability
Solution Approach 1:
The patent combines multiple temperature measurement functions into a single image sensor that processes electromagnetic waves from multiple light guide plates. This merging reduces the volume of temperature information that needs to be processed and transmitted, thereby improving operational stability while maintaining comprehensive temperature measurement coverage.
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
Reduces temperature information throughput and potential measurement errors, enhances stability, simplifies the overall structure, and lowers manufacturing costs by using a single image sensor to detect abnormal temperatures across multiple light guide plates.
Implementation Method 1
a plurality of light guide plates which overlap at least a partial region of one surface of a battery cell in one direction, are struck by electromagnetic waves radiated from the battery cell, and change the path of the electromagnetic waves
Implementation Method 2
an image sensor which overlaps at least a partial region of each of the plurality of light guide plates in the one direction, detects the electromagnetic waves reflected from the light guide plates, and outputs temperature spectrum information
Data Source
AI summary
Disclosed is an abnormal temperature detection system in which the amount of temperature information processing for an entire battery cell can be reduced and stability can be improved, the system comprising: a plurality of light guide plates which overlap at least a partial area of one side of a battery cell in one direction, are struck by electromagnetic waves radiated from the battery cell, and change the path of the electromagnetic waves; an image sensor which overlaps at least a partial area of each of the plurality of light guide plates in the one direction, detects the electromagnetic waves reflected from the light guide plates, and outputs temperature spectrum information for the one side of the battery cell on the basis of the detected electromagnetic waves; and a calculation unit which determines that an abnormal temperature has been detected in the battery cell if the temperature of the one side of the battery cell is outside a preset temperature range.