Silencing device for unmanned aerial vehicle power generation system

Abstract

The invention discloses a silencer for an unmanned aerial vehicle power generation system, and belongs to the technical field of unmanned aerial vehicle silencing. The purpose is to reduce noise pollution through multi-stage noise reduction treatment on noise generated when an unmanned aerial vehicle power generation system works. According to the technical scheme, the silencing device for the unmanned aerial vehicle power generation system comprises an outer shell, and a first partition plate, a second partition plate and a third partition plate are sequentially arranged in the outer shell from one end to the other end to divide the interior of the outer shell into a first silencing area, a second silencing area, a third silencing area and a fourth silencing area; a fourth partition plate, a fifth partition plate and a sixth partition plate are arranged in the third silencing area, an air inlet area is defined by the fourth partition plate, the fifth partition plate, the sixth partition plate and the inner side wall of the outer shell, an air inlet is formed in the outer shell located at the air inlet area, and an air outlet is formed in the outer shell located at the fourth silencing area.

Description

technical field [0001] The invention belongs to the technical field of UAV noise reduction, and relates to a noise reduction device used in a UAV power generation system. Background technique [0002] The hybrid drone is a new type of dual-powered drone. Its power system consists of two power systems, electric drive and conventional engine, in order to achieve the combination of good take-off and climb performance, quietness and ultra-long flight time. The sound intensity generated by the power generation system of the hybrid drone is very loud, and the sound directly transmitted from the engine body and its main accessories to the space is engine noise. [0003] Noise is a by-product of industrial society, and together with air pollution and water pollution, it is considered to be the three major public hazards in the world today. Noise pollution is formed when noise has adverse effects on people and the surrounding environment. Compared with the other two public hazards...

AI Technical Summary

Problems solved by technology

[0007] 3. Most of the existing mufflers are fixed by a separate external device, and the stability is poor;

[0008] 4. The weight of the UAV itself has a significant impact on the transport and flight capabilities of the UAV. Among the existing UAV mufflers, the muffler has a good noise reduction effect, and the muffler is large in size and high in weight. Small in size and low in weight, the ability to deal with noise reduction and noise reduction is unsatisfactory

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