Ventilation cooling equipment and method for avionics equipment

Abstract

According to ventilation cooling equipment and method for avionics equipment, the problem that the time consumed when electrostatic dust removal equipment only adopts vibration to remove dust is relatively long is well solved, a first scraping plate continuously reciprocates on the surface of a dust collection plate through continuous swinging of an eccentric plate, so that the dust is scraped off. The first telescopic rod on the rotating shaft is matched, so that dust on the surface of the dust collecting plate is cleaned more quickly and thoroughly; a second scraping plate is arranged on the first scraping plate, and after the first scraping plate stops moving on the dust collecting plate, the second lead screw rotates in a reciprocating mode through cooperation of the long rod and the wedge-shaped rod, so that the second scraping plate slides on the working face of the first scraping plate in a reciprocating mode, and dust remaining on the first scraping plate is scraped off again; and dehumidification equipment is further arranged, so that the situation that the electronic device is short-circuited due to the fact that condensate water is generated when cooling air meets hot air in the electronic device is avoided.

Description

technical field [0001] The invention relates to the technical field of avionics equipment, in particular to a ventilation and cooling equipment for avionics equipment. Background technique [0002] With the rapid development of modern science and technology, the electronic equipment of advanced aircraft is increasing, and the power is also increasing. Moreover, when the electronic equipment on the aircraft is working, the power loss of components is usually expressed in the form of heat dissipation, thus A large amount of heat energy is emitted, which makes the internal temperature of the equipment continuously increase, and the change of temperature also has a significant impact on the failure of components. Therefore, it is more important to cool these electronic equipment. Electronic equipment that often needs to be cooled includes control-type internal The control panel and the control cabinet in the bilge, the cooling method usually used at present is ventilation coolin...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of modern science and technology, the electronic equipment of advanced aircraft is increasing, and the power is also increasing. Moreover, when the electronic equipment on the aircraft is working, the power loss of components is usually expressed in the form of heat dissipation, thus A large amount of heat energy is emitted, which makes the internal temperature of the equipment continuously increase, and the change of temperature also has a significant impact on the failure of components. Therefore, it is more important to cool these electronic equipment. Electronic equipment that often needs to be cooled includes control-type internal The control panel and the control cabinet in the bilge, the cooling method usually used at present is ventilation cooling, through the air compressor to transmit the compressed air to the electronic equipment that needs to be cooled, or to introduce cooling air from the cockpit to cool the electronic equipment Ventilation and cooling, but when cooling air is introduced into electronic equipment, it is inevitable that dust and other substances attached to the air will be brought into electronic equipment. Due to the chargeability of dust particles (dust particles floating in the air have 90 %-95% positive charge or negative charge), it is easy to cause dust to condense and settle around the electrical equipment, thereby reducing the electrical distance, destroying the insulation strength of the electrical equipment, and easily causing overvoltage in the line or during electrical operation. Electrical breakdown and short circuit accident, so it is necessary to dedust the cooling air while ventilating and cooling;

[0003] The commonly used air dust removal method is electrostatic dust removal, which is to separate the dusty gas through the high-voltage electrostatic field (emitter), and the dust particles are combined with negative ions to be negatively charged, and tend to discharge and deposit on the surface of the anode (dust collection plate) , but a certain thickness of dust deposited on the surface of the anode will affect its adsorption to dust. Therefore, the surface of the dust collecting plate needs to be cleaned after the equipment is used for a certain period of time, and the electrostatic precipitator generally uses vibration, but this The method not only takes a long time, but also the cleaning effect is not ideal, so it is more important to design a device that can quickly and better clean the dust collection during the ventilation and cooling process

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