| 摘要 |
PURPOSE:To prevent a radio noise radiated from a heating coil type defogger by inserting a capacitor in parallel into said defogger installed to a window glass of an automobile, and earthing it to a car body. CONSTITUTION:A heating coil 1 and a battery 11 are connected by a power source harness 3 and 9 through a + terminal 7 of a capacitor 5, and also a -terminal 13 of the capacitor 5 is connected to a car body panel by a screw 15. In this way, the capacitor 5 is inserted in parallel, and between the power source harness 3 and a car body being an earth, the capacitor 5 is connected in a state that there is no conductance of a lead wire, therefore, a radio noise of the power source harness 9 can be by-passed to an earth, a propagation of the radio noise to the power source harness 3 can be prevented, and also a radiation of the radio noise from the heating coil 1 can be prevented. |
