Detection method of airborne relay

Abstract

The invention relates to a detection method of an airborne relay. A detection instrument is arranged and includes a detection panel, a signal collection module and a color display device, wherein the signal collection module and the color display device are connected with a power supply. A plurality of groups of parallel signal collection ports of the signal collection module, a plurality of groups of corresponding signal lamps, a liquid crystal display screen of the color display device, a switch of the power supply, a voltage adjusting knob of the power supply, and a series relay testing switch are arranged on the detection panel of the detection instrument. A contact and a coil of an airborne relay are connected with the signal collection ports by external leads. When the power switch is connected, the voltage adjusting knob of the power supply is adjusted to a requirement voltage; the relay testing switch is connected; and then corresponding parameters of the signal lamps and the liquid crystal display screen are observed.

Description

technical field [0001] This patent relates to the detection and verification technology of the aircraft, specifically a method for detecting the function of the relay without completely disassembling the relay. Background technique [0002] With the rapid development of aviation technology, relays are widely used in the design and control of aircraft, and their role is irreplaceable. The relay is the control device of the circuit, which can control the connection and disconnection of multiple lines at the same time, and plays the role of automatic adjustment, safety protection, conversion circuit, etc. in the circuit, which cannot be replaced by other components. A large number of relays are used in important systems such as aircraft engine starting, power supply, fuel, and environmental control to control the normal flight of the aircraft. According to the types of aircraft currently produced, the average number of relays of various types on each aircraft has reached hundre...

AI Technical Summary

Problems solved by technology

There are many types of relays involved in this overhaul process, the number is large, and the process is cumbersome. In the process of disassembling and reinstalling, it is easy to cause operational errors, and the secondary failure rate after all disassembly is high, which brings a lot of troubles to the overhaul work. In the process of overhauling the panel box, the aircraft maintenance workshop needs to pay a certain fee to the corresponding panel box repair workshop and relay calibration workshop, which also increases the maintenance cost of the aircraft repair. the cost of

[0004] In the process of regular inspection or field troubleshooting, faults such as poor contact of relay contacts and non-working coils often occur

When troubleshooting, if it is judged that some faults are caused by relays, it is necessary to verify the corresponding relays. Because there is no relay detection equipment in the field, the relays can only be verified by powering on. This inspection method is not safe. High, and the repeated power-on process will cause great damage to the on-board lines and equipment, increase the consumption of personnel, materials and costs, and bring a lot of inconvenience to regular inspections or field troubleshooting

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