| 摘要 |
PURPOSE:To effectively utilize the energy of leakage magnetic flux by making a conductor cross the magnetic flux converged in a magnetic shield. CONSTITUTION:A transformer T is contained in a tank 6 equipped with a magnetic shield 7. A coil 8 is wound on the magnetic shield 7 and both the ends are connected to terminals 9 provided on a side wall 6a and a cooling fan motor 10 is connected to the outside of the tank. When the converged magnetic flux passes the magnetic shield 7, voltage is generated in the coil by electromagnetic induction and utilized as a power supply for the motor 10. According to thus simplified construction, the leakage magnetic flux is effectively utilizable and economic efficiency is greately improved. |
