电动汽车的电磁暴露水平驱动电机到乘客穿着心脏起器的心脏起器
Xuwei Dong1, Yidan Qian1, Mai Lu1
1Key Laboratory of Opto-Electronic Technology and Intelligent Control of the Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070, China.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
电动汽车 (EV) 的电磁场不会对心脏起器用户的健康构成风险. 这项研究发现诱导的电场,吸收率和温度变化在电动汽车中的心脏起器患者的安全范围内.
科学领域:
- 运输中的电磁兼容性 (EMC)
- 生物医学工程和医疗器械安全
- 计算电磁学和人体建模
背景情况:
- 由于人口老龄化和心血管疾病,心脏起器的患病率增加.
- 电动汽车 (EV) 的日益普及以及对其复杂的电磁环境的担忧.
- 需要评估电动汽车中心脏起器接受者的安全性.
研究的目的:
- 为了评估带有心脏起器的乘客暴露在电动汽车驱动电机产生的电磁场中的安全性.
- 量化诱导电场,特定吸收率 (SAR),以及人体和心脏的温度变化.
- 将计算值与国际安全标准 (ICNIRP,ISO 14708-2) 进行比较.
主要方法:
- 开发有限元法 (FEM) 计算模型,用于车辆车身,人体,心脏和心脏起器.
- 模拟来自电动汽车驱动电机的电磁辐射.
- 诱导电场,SAR和温度变化的计算.
主要成果:
- 最大诱导电场 (60.3 mV/m) 发生在脚上;最大心脏电场 (283 mV/m) 发生在心脏起器电极附近.
- 人体最大SAR值为1.08 × 10-6 W/kg;电极附近最大心脏SAR值为2.76 × 10-5 W/kg.
- 在30分钟内,干,心脏和心脏起器的最大温度增加是最小的 (<0.16 × 10-5°C).
结论:
- 计算的电磁场水平,SAR和温度升高低于ICNIRP人类暴露的安全限值.
- 心脏起器电极的电场强度和温度升高符合医疗器械标准 (ICNIRP,ISO 14708-2).
- 来自电动汽车电机的电磁辐射不会对心脏起器佩戴者构成安全风险.
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