Rounded Temperature Sensor Mounting for Battery Modules
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Solution Overview
Problem
The existing battery modules face challenges in effectively measuring and controlling temperature due to the complexity of their internal structure, which complicates the installation of temperature sensors, leading to potential scratches on battery cells, short circuits, and reduced lifespan.
Innovation Solution
A battery module design featuring cartridges with assembly type frames that include a temperature sensor mounting unit with a rounded temperature sensor to prevent scratches and facilitate easier installation, allowing the sensor to contact the battery cells safely and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is inserted between the battery cells to measure temperatures accurately, then the measurement precision is improved, but the device complexity increases and the battery cells may be damaged
Solution Approach 1:
The patent introduces a temperature sensor mounting unit as an intermediary component that is integrated into the cartridge structure. This mounting unit provides a dedicated interface for the temperature sensor, allowing it to contact the battery cell surface without requiring direct manual insertion between cells. The mounting unit acts as a mediator that simplifies the assembly process while maintaining accurate temperature measurement capability.
Solution Approach 2:
The temperature sensor is pre-mounted into the cartridge structure before the battery cells are assembled. The mounting unit is prepared in advance with the temperature sensor already positioned and secured, so that when the battery module is assembled, the temperature measurement capability is already in place without requiring complex post-assembly adjustments or interventions.
2Measurement precision
If the temperature sensor directly contacts the battery cell surface for accurate measurement, then the measurement precision is improved, but the battery cells may be scratched and lifespan reduced
Solution Approach 1:
The patent changes the geometric parameters of the temperature sensor by rounding its contact ends. This parameter modification allows the sensor to maintain intimate contact with the battery cell surface for accurate temperature measurement while eliminating sharp edges that could cause scratching or mechanical damage to the cell surface during installation or operation.
Solution Approach 2:
The temperature sensor is designed with non-uniform geometry, featuring rounded ends at the contact surfaces while maintaining its sensing functionality in the body. This local quality modification applies specifically to the regions that interact with the battery cells, providing protection exactly where needed without compromising the overall sensor performance.
3Ease of manufacture
If conventional temperature sensors with sharp ends are used for easy installation, then the ease of manufacture is improved, but the reliability decreases due to potential short circuits and cell damage
Solution Approach 1:
The patent modifies the geometric parameters of the temperature sensor by rounding its contact ends. This parameter change maintains ease of installation while significantly improving reliability by eliminating the risk of scratching battery cells and causing short circuits. The rounded geometry is simple to manufacture and does not complicate the production process.
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
The rounded temperature sensor design enhances safety by preventing damage to battery cells, improves assembly efficiency, and ensures stable temperature measurement, reducing the risk of short circuits and extending battery lifespan.
Implementation Method 1
a temperature sensor, mounted in the temperature sensor mounting unit, is configured to have a structure in which ends of a surface of the temperature sensor contacting a corresponding one of the battery cells are rounded
Data Source
AI summary
Disclosed herein is a battery module including two or more battery cells, which can be charged and discharged, arranged in a stacked state and cartridges for fixing the battery cells to constitute a battery cell stack, wherein each of the cartridges includes a pair of assembly type frames, which are coupled to each other in a state in which a corresponding one of the battery cells is mounted in the frames, at least one of the cartridges includes a temperature sensor mounting unit, and a temperature sensor, mounted in the temperature sensor mounting unit, is configured to have a structure in which ends of a surface of the temperature sensor contacting a corresponding one of the battery cells are rounded.