A Frequency Conversion Controller Used in Airbag Pressure Control System of Stratospheric Airship

Abstract

The invention discloses a frequency-conversion controller for an air bag pressure control system of a stratospheric airship. A case of the controller is internally provided with a plurality of control modules which can control a plurality of fans simultaneously; the rotation speeds of the fans can be adjusted along with the change of the temperature in a device cabinet; the case of the controller adopts heat dissipation windows and speed adjusting fans for performing convection heat dissipation; the speed adjusting fans are arranged on the heat dissipation windows on the side walls of two ends of the case of the controller; the rotation speeds of the speed adjusting fans can be adjusted along with the change of the temperature in the case of the controller; control circuit boards are fixed on the upper surface of the middle clapboard; heating resistors are positioned on the lower surface of the middle clapboard; a control circuit of the heating resistors is arranged on a control board; when the environment temperature is lower than -20 DEG C, the heating is automatically started; power circuit boards are matched with the IPM modules; the lower surfaces of the IPM modules are fixed on a bottom plate of the case by coating heat conduction silica gel. The frequency-conversion controller can work in an environment with a large temperature difference and has the characteristics of being small in volume, light in weight and strong in anti-electromagnetic interference capacity, and the temperature of electronic equipment capable of realizing periodic work is stabilized within an appointed working range.

Description

technical field [0001] The invention relates to a frequency conversion driver, in particular to a frequency conversion controller used in a stratospheric airship airbag pressure control system. Background technique [0002] The stratosphere, also known as the adjacent space, refers to the airspace 20km to 50km above the ground; the following factors determine that this airspace is very suitable for airship operations: 1) It exceeds the height of civil aviation control, is not limited by current aviation control, space resources Rich; 2) The air is thin and the flight resistance is small; 3) The wind speed is small and the airflow is stable, so the airship is easy to maintain a fixed point, attitude and flight control; 4) It is above the clouds, so it has sufficient solar energy supply, and at the same time it is below the ionosphere , information transmission is not affected by the ionosphere. [0003] Compared with airplanes, stratospheric airships have the advantages of l...

AI Technical Summary

Problems solved by technology

However, it does not involve the issues of maintaining temperature stability, anti-electromagnetic interference, and anti-vibration inside electronic equipment.

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