The invention discloses a battery pack temperature monitoring system, which is composed of a magnetic battery module, a management terminal and a plurality of RFID sensing tags, and is characterized in that the magnetic battery module comprises a battery pack, a magnetic material and a sealing shell; the RFID sensing tag comprises a tag chip and a tag antenna, the tag antenna comprises an antenna radiator, a magnetically controlled switch and an interdigital capacitor structure, the magnetically controlled switch and the interdigital capacitor structure are connected with the antenna radiator, and the magnetically controlled switch and the interdigital capacitor are tightly attached to the surface of the battery module; and the management terminal is arranged outside the battery module. According to the monitoring system, the magnetic control switch is controlled by utilizing the fact that the magnetism of the magnetic material is changed due to the influence of the temperature, so that the sensing tag enters a readable mode, and the sensing tag expands when the temperature rises through the arrangement of the interdigital capacitor structure, so that the phase of an RFID sensing signal is changed; the management terminal analyzes and obtains the real-time temperature of the surface of the battery pack through the phase change, and compared with a traditional temperature sensor, the monitoring system is more sensitive and accurate.
本发明公开了一种电池组温度监控系统,由磁性电池模组、管理终端及若干RFID传感标签构成,磁性电池模组包括电池组、磁性材料及密封外壳;RFID传感标签包括标签芯片和标签天线,标签天线包括天线辐射体以及与天线辐射体相连的磁控开关和叉指电容结构,磁控开关与叉指电容均紧贴于电池模组的表面;管理终端置于电池模组外。本发明的监控系统利用磁性材料受温度的影响导致磁性发生变化来控制磁控开关,使得传感标签进入可读取模式,通过设置叉指电容结构,在温度升高时发生膨胀,使RFID传感信号的相位发生变化,管理终端通过相位的变化来分析得到电池组表面的实时温度,与传统温度传感器相比,本发明的监控系统更为灵敏、精确。
Battery pack temperature monitoring system
一种电池组温度监控系统
2024-10-15
Patent
Electronic Resource
Chinese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01K MEASURING TEMPERATURE , Messen der Temperatur |
European Patent Office | 2023
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