Temperature Sensor Regulation for EV Storage Modules
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Solution Overview
Problem
Conventional temperature sensors in storage modules for electric vehicles face challenges in maintaining precise temperature detection due to vibrations, which disrupt the contact between the sensor and the battery case, leading to inaccurate readings.
Innovation Solution
A storage module design that incorporates a temperature sensor with a pressing member and regulation members to secure the sensor in place, preventing movement orthogonal to the pressing direction, ensuring stable contact even under vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fixing portion is configured to be elastically deformable, then the temperature sensor can be easily installed and accommodated, but the contact state between the detection body portion and the battery case cannot be maintained under vibration
Solution Approach 1:
The temperature sensor is divided into distinct functional portions: a fixing portion for installation, a detection body portion for measurement, and an intermediate connection portion. This segmentation allows each portion to be optimized independently - the fixing portion can be elastically deformable for easy installation while the detection body portion maintains stable contact through the regulation member.
Solution Approach 2:
The connection portion acts as an intermediary between the fixing portion and the detection body portion. It transmits the pressing force from the fixing portion to the detection body portion while allowing the regulation member to control the movement of the detection body portion, thereby maintaining contact stability without compromising ease of installation.
2Adaptability or versatility
If the detection body portion is freely movable to accommodate variations, then installation flexibility is improved, but temperature detection precision deteriorates due to movement under vibration
Solution Approach 1:
Different portions of the temperature sensor have different mechanical properties tailored to their specific functions. The fixing portion has elastic deformability for accommodation flexibility, while the detection body portion has its movement regulated for precision. This local differentiation of mechanical properties resolves the contradiction between adaptability and measurement precision.
Solution Approach 2:
The system transitions from a static rigid structure to a dynamic system where the connection portion can elastically deform to accommodate variations in battery case shape, while the regulation member dynamically controls the detection body portion's position to maintain precise contact during operation and under vibration.
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 design allows for precise temperature detection of storage elements in electric vehicles, maintaining accuracy even when the module is subjected to vibrations, thereby enhancing the reliability of temperature control and monitoring.
Implementation Method 1
a pressing member which presses the temperature sensor to the storage element
Implementation Method 2
a temperature sensor which contacts a surface of the storage element and detects a temperature of the storage element
Data Source
AI summary
A storage module in which a plurality of storage elements are electrically connected by bus bars includes: a temperature sensor which contacts a surface of the storage element and detects a temperature of the storage element; a pressing member which presses the temperature sensor to the storage element; and a regulation member which regulates a movement of the temperature sensor in a direction orthogonal to a pressing direction of the pressing member.