| 摘要 |
PURPOSE: An apparatus for preventing incoming particles is provided to allow air to smoothly flow and prevent noises by preventing parts from being eroded and minimizing air flow resistance. CONSTITUTION: An apparatus for preventing incoming particles includes an air influx part and a motor(20). The air influx part receives external air. The motor(20) generates rotary power in the inside of a housing. The housing has an air passage. The air influx part of the housing has a penetration hole(13) connected to the air passage at one side of the housing(10). A brim of the penetration hole(13) has a slop step surface(14) having a predetermined width and a ring shape. A first plane(15) is curved and extended such that the first plane(15) has a predetermined area. A plurality rotary mosquito nets(60) are fixed to a motor axis(22).
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