A Complete Collection of 100000 Whys
Fav十万个为什么
为什么吸尘器能吸起灰尘？
简单的摘要：吸尘器能吸起灰尘的原因主要是通过电机产生负压、利用空气流动带走灰尘以及过滤系统捕获灰尘。
1、电机产生负压：吸尘器内部的电机高速旋转，带动风机叶轮转动，使吸尘器内部产生负压，即低于外部大气压的压力状态。
2、利用空气流动带走灰尘：由于吸尘器内部是负压状态，外部正常大气压下的空气会迅速涌入吸尘器，形成一股强烈的气流。这股气流经过吸嘴时，会带动周围的灰尘和杂物一起进入吸尘器。
3、过滤系统捕获灰尘：被吸入吸尘器的灰尘和杂物，会经过吸尘器内部的过滤系统。过滤系统通常由滤网、滤芯等组成，能够有效地阻挡和捕获灰尘，防止其重新排放到空气中，从而达到清洁的目的。
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