Infrared temperature acquisition system

Abstract

The invention discloses an infrared temperature acquisition system, which includes a battery module, a temperature acquisition module and a BMS system. The temperature acquisition module includes a temperature sensor, a signal processing circuit and an analog-to-digital conversion module; The working temperature of the group; the temperature sensor is connected with the signal processing circuit, and the collected temperature signal is transmitted to the signal processing circuit, and 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 The voltage signal is transmitted to the digital-to-analog conversion module; the analog-to-digital conversion module is also connected to the BMS system; the BMS system is also connected to the battery module. The present invention uses an infrared temperature sensor to collect the working temperature of the battery module, and the temperature sensor and the battery module are non-contact, so there is no interference with the work of the battery module; in addition, the method of collecting temperature by the infrared temperature sensor belongs to surface temperature collection, representing Strong, the overall effect is good.

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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