Battery Module Temperature Sensor Alignment for Stable Detection
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Solution Overview
Problem
Existing temperature measurement apparatuses for battery modules face challenges in stabilizing the position of temperature sensors, leading to inefficiencies in assembly and manufacturing processes, and potential inaccuracies in temperature detection.
Innovation Solution
A temperature measurement apparatus is designed with a bus bar holder, substrates, a temperature sensor protected by multiple members, and a support member to align the sensor position, thereby stabilizing the sensor and improving assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensor is installed in a battery module to detect temperature, then temperature detection capability is improved, but the position stability of the temperature sensor deteriorates
Solution Approach 1:
The support structure is divided into multiple functional components: a support member with guide rails for positioning, a protection member with a receiving cavity for housing the sensor, and a fixing member for securing the protection member to the battery module. This segmentation allows each component to perform its specific function optimally while working together to stabilize the temperature sensor.
Solution Approach 2:
A protection member is introduced as an intermediary component between the temperature sensor and the external environment. This protection member includes a receiving cavity that houses the temperature sensor, providing both mechanical support and protection, thereby stabilizing the sensor's position while allowing it to function effectively.
2Reliability
If multiple protection members are added to protect the temperature sensor, then reliability of temperature detection is improved, but device complexity increases
Solution Approach 1:
Multiple protective functions are merged into a single integrated protection member. This protection member combines the functions of mechanical support, physical protection, and positioning into one component, which is then fixed to the battery module. This merging reduces the number of separate parts needed while maintaining comprehensive protection and reliability.
Solution Approach 2:
The protection member is designed to perform multiple functions simultaneously: it provides mechanical protection to the temperature sensor, maintains the sensor's positional stability, and serves as a mounting structure for securing the sensor assembly to the battery module. This multi-functionality reduces overall device complexity while improving reliability.
3Ease of manufacture
If the temperature sensor position is not stabilized, then assembly process becomes simpler, but manufacturing precision deteriorates
Solution Approach 1:
The support member with guide rails and the protection member with receiving cavity are pre-configured with positioning features before assembly. These features guide the temperature sensor into the correct position during assembly, ensuring precise positioning without requiring complex adjustment procedures. The preliminary configuration of these structural elements simplifies the assembly process while maintaining high positioning precision.
Data Source
AI summary
A temperature measurement apparatus and a battery module including the same are disclosed. A temperature measurement apparatus includes a bus bar holder including an alignment hole, a first substrate on the bus bar holder, a second substrate extending from the first substrate and including first and second surfaces opposite to each other, a temperature sensor on the first surface, a first protection member on the first surface and configured to protect the temperature sensor, a second protection member on the second surface and configured to protect the temperature sensor, and a support member on the bus bar holder and configured to support the second substrate with respect to the alignment hole.