随着气温的日益升高,汽车大多已经开启了空调。但有车主发现,汽车在行驶了一段时期后,空调的制冷效果开始下降,油耗加大,打开空调要等很久才能感到凉意,而且汽车还容易出现动力衰减、启动震抖、怠速熄火等现象。其实,这种现象的主要原因,一是机件磨损,泄漏增大,致使压缩机功率不足;二是冷凝器和蒸发器上灰尘大量堆积,造成热交换效率下降,并且导致大量病菌存活,在车内狭小的空间里对人的健康造成损害。笔者发现,空调效果降低主要是第二种原因所致。因此建议,汽车空调在使用半年,最多一年就应清洗一次,以改 With the increasing temperature, most cars have been turned on air conditioning. However, car owners found that after a long period of driving, the cooling effect of air conditioners began to decline. Fuel consumption increased. Air conditioning had to wait for a long time to feel cool, and the car was prone to power decay, start-up shaking and idling stop. In fact, the main reason for this phenomenon, one is the wear and tear of parts, leakage increases, resulting in insufficient compressor power; the second is a large accumulation of dust on the condenser and evaporator, resulting in decreased heat exchange efficiency, and lead to a large number of bacteria survive in Narrow space in the car to human health damage. The author found that the reduction of air conditioning is mainly due to the second reason. Therefore, it is suggested that the car air conditioner should be cleaned once a year for up to one year in order to change