Aviation direct-current distribution relay

Abstract

The invention discloses an aviation direct-current distribution relay. The relay comprises a top shell, and a suction plate is arranged below the top shell; an elastic recovery piece is arranged between the attraction plate and the top shell; an extension fixing rod is arranged on the side surface of the attraction plate; and the extension fixing rod is hinged to the telescopic buffer assembly. Anelectric wire fixing frame is arranged below the attraction plate; a first electrifying wire and a secondary electrifying wire are coiled and fixed on the electric wire fixing frame; the first electrifying wire and the secondary electrifying wire are coiled on the wire fixing frame to form a spiral coil; upper tightening assemblies are arranged at the upper ends of the first electrifying wire andthe secondary electrifying wire, lower tightening assemblies capable of tensioning the electrifying wires are arranged at the lower ends of the first electrifying wire and the secondary electrifyingwire, and the first electrifying wire and the secondary electrifying wire penetrate through the lower tightening assemblies and are connected to a lower electric cabinet. By adding the secondary electrifying wire and tensioning and winding the first electrifying wire and the secondary electrifying wire on the first magnetic flux core, the power supply stability of the aircraft is maintained, and the occurrence probability of power supply safety accidents of the aircraft is effectively reduced.

Description

technical field [0001] The invention relates to the field of aviation power distribution equipment, in particular to an aviation DC power distribution relay. Background technique [0002] The normal power supply of the aircraft is provided by the generator driven by the engine. When the output of the generator cannot meet the load demand, the auxiliary power supply of the aircraft battery is required to meet the needs of electrical equipment, such as engine starters, hydraulic pumps for landing gear retraction, and flap retraction. When large loads such as motors and landing lights are started, when they are superimposed on work, or when a certain large load is working for a long time, due to the limited capacity of the battery, the generator voltage regulator automatically cuts off the output of the left and right generators. At this time, the battery supplies power independently, and the voltage quickly decline. As the grid voltage drops, the current becomes smaller, and ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is no corresponding equipment structure to effectively solve the problem of relay contact separation when the magnetic flux becomes small, and when the problem occurs, the voltage is usually artificially increased to keep the current large enough, and the magnetic flux can guarantee effective resistance The recovery force of the spring, and when the aircraft is flying in the air, no mistakes are allowed to ensure the safety of the entire aircraft. At present, it is not stable to control the closing of the relay simply by increasing the voltage. How can the relay be stably In the closed state, it is an urgent problem to be solved in the field of aviation power distribution equipment to avoid flight failures caused by the disconnection of the relay during the flight.

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