Abstract

Abstract

Overview

With the rapid development of wireless power charging technology, its application in electric vehicle charging has advanced, presenting various advantages over plug-in charging methods. However, concerns about the electromagnetic bio-safety of humans in such environments have emerged.

Findings

This study utilizes finite element analysis to investigate the safety of electromagnetic fields around crucial organs within a typical electric vehicle charging environment, examining humans in different postures. Results from the 7.7 kW, 85 kHz charging environment show that:

• The distribution of electromagnetic fields varies per organ.
• Organ exposure to electromagnetic radiation is highly dependent on both the electromagnetic parameters and the organ's position relative to the source.
• When the human body is flat in the car, exposure to radiation peaks.
• The total radiation dose received by each organ remains significantly below the ICNIRP (International Commission on Non-Ionizing Radiation Protection) standards.

Conclusion

The findings affirm the low-risk nature of electromagnetic radiation in low-power wireless charging environments, supporting its safety and further commercializing this technology for electric vehicles.