| 摘要 |
The invention relates to a safety power supply device (10) comprising: a channel (K) which extends along a fuselage (R) of the aircraft (F) between two openings (4; 5, 85, 95) and has a front opening (4) and a rear opening (5), a turbine (12) which is arranged in the channel (K) and has a generator (14), a cover device (6) for covering the front opening (4) in a closed position thereof, an electromechanically operable opening and closing device (61), and an electromagnetically operable unlocking device (62) which is associated with the cover device (6) and is designed to lock the cover device (6) when a current of a first strength is supplied thereto and to unlock the cover device (6) when a current of a second strength is supplied thereto, wherein the second signal strength is lower than the first signal strength by at least a predefined value, at least one operating device (41, 42) which is functionally connected to the opening and closing device (61) and generates an opening or closing signal therefor, an opening switching device (27) which is designed such that said opening switching device electrically controls the electromagnetically operable unlocking device (62) with a first signal strength in a basic state, at which signal strength the cover device (6) is locked, and that said opening switching device electrically controls the unlocking device (62) with the second signal strength upon receiving a power demand signal from the power generating monitoring device (25), at which signal strength the cover device (6) is unlocked. |
