| 摘要 |
PURPOSE:To economize electric power, by automatically stopping the operation of an anti-fogging hot wire for a window pane and causing an air conditioner to begin anti-foggig operation when the refrigeration cycle of the air conditioner has started working during the operation of the anti-fogging hot wire. CONSTITUTION:An air conditioning control circuit 7 functions to supply or cut off an electrical current to a magnet clutch coil 8 for compression driving, at the request of the automobile driver or an air conditioning control system. When a set time necessary to remove moisture from a window pane by an air conditioner with its refrigeration cycle working has elapsed since the beginning of the supply of the electrical current to the coil 8, a reset signal is applied to a timer switch circuit 6 through which a hot wire 3 can be put in operation by pressing a button. When the circuit 6 has received the reset signal, the circuit is shifted to the initial condition and loses its function of driving a relay 2. When the refrigeration cycle is not working, the timer switch circuit 6 can be used to remove moisture from the wind pane. |
