Battery Temperature Sensor Integrated with Lead Connector
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Solution Overview
Problem
Existing battery temperature measurement methods face challenges in accurately measuring secondary battery temperatures due to the inability of conventional temperature sensors to directly contact the electrode leads, leading to inefficiencies in performance and safety.
Innovation Solution
An apparatus with a temperature sensor mounted on an integrated circuit board that includes a lead connector to directly contact the electrode lead of the secondary battery, using the battery's potential as operation power, and a calculating unit to measure temperature based on the sensor's electric signal, reducing the need for additional power conversion and minimizing connector and line sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensor is mounted on a conventional integrated circuit board to obtain accurate temperature measurement, then the temperature sensor can be positioned close to the secondary battery, but the sensor cannot directly contact the electrode lead due to voltage isolation requirements
Solution Approach 1:
The patent merges the temperature sensor mounting location with the lead connector structure. The temperature sensor is mounted directly on the lead connector that contacts the electrode lead, combining the electrical connection function and temperature sensing function into a single integrated structure. This eliminates the need for separate temperature sensing lines and reduces the number of components while enabling direct thermal contact for accurate measurement.
Solution Approach 2:
The lead connector serves as an intermediary element that simultaneously provides electrical connection and thermal conduction. By mounting the temperature sensor on the lead connector, the connector acts as a mediator that transfers both electrical signals and thermal energy, solving the contradiction between needing direct thermal contact and maintaining electrical isolation.
2Ease of operation
If the temperature sensor operates using operation voltage from the BMS, then the sensor can function properly, but the sensor cannot directly contact the electrode lead of the secondary battery
Solution Approach 1:
The lead connector is designed with multi-functionality, serving both as an electrical connection component and a temperature sensing platform. The connector not only transmits electrical current but also provides a mounting surface for the temperature sensor and acts as a thermal conduction path. This universal design allows the sensor to obtain power from the battery while maintaining direct thermal contact for accurate measurement.
3Ease of operation
If additional power conversion components are added to enable temperature sensor operation, then the sensor can function, but the size and complexity of the connector and line connections increase
Solution Approach 1:
The patent extracts the power conversion function from the overall system by utilizing the battery's own voltage directly at the connector level. Instead of adding separate power conversion components, the design takes out the unnecessary intermediate conversion stages and uses the battery voltage directly to power the temperature sensor through the lead connector, thereby reducing the size and weight of the connector assembly.
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 solution enables accurate temperature measurement through direct thermal conductivity, improving measurement accuracy and reducing the size and complexity of the connector and line connections, enhancing battery performance and safety by allowing for precise temperature monitoring.
Implementation Method 1
enables accurate temperature measurement through direct thermal conductivity
Data Source
AI summary
An apparatus and method for measuring temperature of a battery, which may effectively measure a temperature of a secondary battery. The apparatus measures a temperature of a secondary battery at an integrated circuit board configured to contact an electrode lead of the secondary battery, and includes a lead connector mounted on the integrated circuit board and configured such that the electrode lead is connected thereto, a temperature sensor mounted on the integrated circuit board and configured to receive an operation power from the secondary battery as a first terminal provided at one end thereof among a plurality of terminals included therein is in direct contact with the lead connector, and a calculating unit electrically connected to the temperature sensor and configured to measure the temperature of the secondary battery based on an electric signal measured by the temperature sensor.