| 摘要 |
An electromagnetic field shielding system of an electric vehicle drive motor. A plurality of power surge protectors (28, 30), a signal line (40) and a control circuit protector (4) mounted between an outer-layer shield (2) thereof and a drive motor (8) absorb a current inducted by a drive motor electromagnetic field on a power supply line (37) and the signal line, so that the current cannot penetrate through the shield to form a new strong electromagnetic field, thereby reaching the medical standard of a magnetic field intensity of an electric vehicle drive motor being smaller than 0.4 μT within a range of 0.6 m. With such an electric vehicle drive motor without electromagnetic radiation, people can drive at a driving position or ride in an electric vehicle within a range of 0.6 m for a long time without any radiation hazard to human bodies, which can be a favourable condition for vigorously promoting electric vehicles. After popularization of electric vehicles, existing vehicles using gasoline and diesel oil as fuels can be replaced, and environmental pollution worldwide can be controlled fundamentally. |
