Cylindrical Cell Temperature Sensor Mounting With Pin Contact
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Solution Overview
Problem
Existing temperature sensor installations in battery systems, particularly for cylindrical cells, are complex and unsuitable for larger battery packs, lacking a constructively simple and efficient method for temperature measurement and installation.
Innovation Solution
A battery system with a temperature sensor arrangement using an electrical conductor element and a pin element to press the sensor against cylindrical cells, allowing for simple and reliable temperature measurement through a flexible flat cable and pin element fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing temperature sensor installation methods are used in battery systems with cylindrical cells, then temperature monitoring can be achieved, but the installation becomes complex and unsuitable for larger battery packs
Solution Approach 1:
The patent combines the temperature sensor with the electrical conductor element (flexible flat cable) into an integrated assembly. The sensor is positioned to contact the battery cell surface and is electrically connected through the same flexible cable structure used for other battery cell connections, eliminating separate mounting hardware and simplifying installation in large battery packs.
Solution Approach 2:
The flexible flat cable structure serves multiple functions: it provides electrical connection between battery cells and simultaneously carries the temperature sensor. This multi-functional design allows the same component to handle both power/signal transmission and temperature monitoring, reducing overall system complexity while maintaining measurement accuracy.
2Reliability
If temperature sensors are installed in larger battery packs, then comprehensive temperature monitoring is achieved, but the installation complexity increases significantly
Solution Approach 1:
The battery pack is divided into modular sections where the flexible flat cable with integrated sensor can be systematically connected to multiple battery cells in sequence. This segmentation approach allows for standardized, repeatable installation procedures across large battery packs, maintaining reliability while improving ease of operation through modular assembly.
Solution Approach 2:
The flexible flat cable structure is designed to self-align and self-connect to battery cell terminals, with the temperature sensor automatically positioned to contact the cell surface during the connection process. This self-service mechanism reduces the need for precise manual positioning and complex alignment procedures, significantly easing installation while ensuring reliable sensor contact.
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
Enables efficient and reliable temperature monitoring of battery cells with simplified installation, ensuring accurate heat transfer and reduced complexity in larger battery packs.
Implementation Method 1
presses the temperature sensor against at least one of the battery cells
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 2C~3
AI summary
The present disclosure refers to a battery system, comprising a battery pack (10) including a plurality of cylindrical battery cells (12) arranged in an array with clearances (14) between neighboring battery cells (12), an electrical conductor element (20) having a main portion (16) extending along a surface of the battery pack (10) and at least one branch portion (18) branching off of the main portion (16) and comprising at least one temperature sensor (22) for sensing the temperature of at least one of the battery cells (12), the branch portion (18) with the temperature sensor (22) extending into one of the clearances (14) between the battery cells (12), the battery system further comprising a pin element (24, 124) inserted into the same clearance (14) such that it presses the temperature sensor (22) against at least one of the battery cells (12).