Infrared temperature acquisition system

Abstract

The invention discloses an infrared temperature acquisition system, which comprises a battery module, a temperature acquisition module and a BMS (battery management system). The temperature acquisition module comprises a temperature sensor, a signal processing circuit and an analog-to-digital conversion module. The temperature sensor is an infrared temperature sensor, and is used for collecting the working temperature of the battery module. The temperature sensor is connected with the signal processing circuit and is used for transmitting a collected temperature signal to the signal processing circuit. The signal processing circuit converts the obtained temperature signal into a voltage signal. The signal processing circuit is connected with the analog-to-digital conversion module and is used for transmitting the voltage signal to the analog-to-digital conversion module. The analog-to-digital conversion module is also connected with the BMS. The BMS system is also connected with the battery module. According to the technical scheme of the invention, the infrared temperature sensor collects the working temperature of the battery module. The temperature sensor is not in contact with the battery module, so that the temperature sensor has no interference on the operation of the battery module. In addition, the temperature collection of the infrared temperature sensor is conducted in the surface type temperature collection manner. Therefore, the system is strong in representativeness, and good in overall effect.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of battery modules, in particular to an infrared temperature acquisition system. [0003] 【Background technique】 [0004] In the charging and discharging process of the battery module, there is a range requirement for the optimum working temperature. Due to the influence of the external environment or the heating of the battery module itself during operation, it will face low or high temperature conditions. In order to provide the battery module with an optimal temperature working environment, the working temperature of the battery module is usually detected and collected, and the collected results are transmitted to the battery management system (Battery Management System, BMS). When the detected temperature exceeds the optimal working temperature range, the BMS system will feed back the information to the user and activate the corresponding cooling or heating system to ensure the stability of the ...

AI Technical Summary

Problems solved by technology

At present, the commonly used temperature acquisition system usually uses thermistor as the temperature acquisition component, and the thermistor is fixed on the pole of the single battery in the battery module by welding, which has the following disadvantages: 1. The battery modules are in contact with each other, and there is heat conduction between them, which affects the temperature distribution of the tested battery module. In addition, it will cause certain interference to the normal operation of the battery module; 2. The temperature collected is a certain point, which belongs to the point collection, poor integrity

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