Pressure altitude switch controlling aircraft solenoid valve

Abstract

A pressure altitude switch for controlling an aircraft electromagnetic valve, comprising a filter clamp circuit, a pre-stabilization circuit, a first voltage stabilization circuit, a second voltage stabilization circuit, a first control circuit, a second control circuit, an altitude pressure sensor, an air pressure Sensor, output circuit and plastic shell, filter clamp circuit, pre-stabilization circuit, first voltage stabilization circuit, second voltage stabilization circuit, first control circuit, second control circuit, altitude pressure sensor, air pressure pressure sensor, The output circuit is installed on the circuit board, and is connected with the solenoid valve coil that needs to be controlled on the aircraft and the 28V DC power supply on the aircraft through wires, and the circuit board is installed inside the plastic shell. The invention can automatically control the working mode of the electromagnetic components according to the flight height of the aircraft and the air pressure of the corresponding airspace through the altitude pressure sensor and the air pressure pressure sensor under the action of related circuits, and is easy to use, so it has good application prospects.

Description

technical field [0001] The invention relates to the field of electronic facilities used in conjunction with aviation equipment, in particular to a pressure altitude switch for controlling an aircraft solenoid valve. Background technique [0002] Due to the working needs of the aircraft, some solenoid valve components need to be powered on after the aircraft reaches a certain altitude in the airspace, and then powered off to stop working after the aircraft’s flight altitude drops to a certain level. In the existing aviation equipment, when the electromagnetic valves that need to be opened or closed according to the altitude are actually operated, there is no supporting automatic equipment for automatic control, and it is generally operated manually, which brings great inconvenience to the operator; Since the aircraft works in the high-altitude airspace, the requirements for the reliability and performance of various components are very high, so as to meet the actual needs of ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the electromagnetic valves that need to be opened or closed according to the height of the existing aviation equipment, there is no matching automatic equipment for automatic control during actual operation, because manual operation brings great inconvenience to the operator, the present invention Provided that during aircraft flight, when the aircraft reaches the required altitude airspace, it can automatically switch on the working power of the relevant solenoid valve components of the aircraft under the double action of the altitude and pressure signals input by the altitude pressure sensor and the barometric pressure sensor, so that it can When the aircraft's flight altitude is lowered to a certain level, it can automatically cut off the working power of the relevant solenoid valve components of the aircraft under the double action of the altitude and pressure signals input by the altitude pressure sensor and the barometric pressure sensor, so that it will stop working when it loses power. , thereby achieving an automatic control and easy-to-use pressure-altitude switch for controlling the solenoid valve of the aircraft

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