초록 ▼

A power switching device in an electrical power distribution system on board a helicopter. There is a power switching device that switches on or off the power flow from a main distributor to the consumer. This switching device comprises an overhead panel with a switching means. This device improves

A power switching device in an electrical power distribution system on board a helicopter. There is a power switching device that switches on or off the power flow from a main distributor to the consumer. This switching device comprises an overhead panel with a switching means. This device improves the functional safety of electrical and electronic devices in the helicopter by reducing the electromagnetic influence without increasing the weight of the shielding technology and without requiring additional space in the helicopter airframe. With this device there is at least one fuse panel that is in electrical communication with a main distributor. The main distributor has an electrically protective switch which is connected to a power supply connection and a consumer connection. The electronic protective switch is controllable by a control unit which is connected to a control switch on the overhead panel via a fiber optic cable. This control switch receives a control signal from a base light emitter via an additional fiber optic cable. This light emitter detects the voltage at the power supply connection and forms the control signal.

대표청구항 ▼

1. A power switching device for a helicopter having an overhead panel and at least one switching means disposed in the overhead panel, the the power switching device comprising:a) at least one fuse panel in electrical communication with the overhead panel; b) an electrical distribution system with a

1. A power switching device for a helicopter having an overhead panel and at least one switching means disposed in the overhead panel, the the power switching device comprising:a) at least one fuse panel in electrical communication with the overhead panel; b) an electrical distribution system with a main distributor in electrical communication with said at least one fuse panel; c) at least one electronic protective switch disposed in said fuse panel; d) at least one power supply connection electrically coupled to said at least one electronic protective switch; e) at least one control unit electrically coupled to said electronic protective switch; f) a fiber optic cable coupled to said at least one control unit; g) at least one control switch coupled to said fiber optic cable; h) at least one additional fiber optic cable coupled to said at least one control switch; and i) at least one base light emitter coupled to said at least one additional fiber optic cable wherein said at least one base light emitter detects a voltage at said power supply connection from a control signal sent from said at least one base light emitter. 2. The power switching device as in claim 1, further comprising at least one additional control switch wherein said additional fiber optic cable supplies a common control signal from said base light emitter to said at least one control switch and to said at least one additional control switch.3. The power switching device as in claim 2, wherein said additional fiber optic cable has at least one end that forms a star point wherein said at least one control switch is coupled to said star point.4. The power switching device as in claim 1, wherein said at least one electronic protective switch includes at least two electronic protective switches.5. The power switching device according to claim 1, further comprising at least one overcurrent protection device coupled between said at least one power supply connection and said at least one electronic protective switch so that upon the occurrence of a fault current, said at least one overcurrent protection device sends a signal to an input of said at least one control unit so that said at least one control unit controls an opening of said at least one protective switch.