雨天行车不仅路滑，而且视线也不好，驾驶室内起雾是让人讨厌的，驾驶室内中控台上的循环按钮可以这个问题，那么，下雨天到底是开外循环好还是内循环好呢？很多人可能都不知道吧，今天小编就给大家介绍一下。

Driving on rainy days is not only slippery, but also has poor vision. Fog in the cab is annoying. The cycle button on the central console in the cab can solve this problem. So, in rainy days, is it better to open the external cycle or the internal cycle? Many people may not know it. Today, I will introduce it to you.

下雨天气天冷的话自动上料搅拌车的挡风玻璃上全是雾，严重影响司机的视线，所以好先使用外循环风，将风向调整吹风档，开外循环，可以把人呼出的蒸汽排出车外，而外面的冷空气不容易凝结的。

In rainy days and cold days, the windshield of the automatic feeding mixer is full of fog, which seriously affects the driver's vision, so it is better to use the external circulation wind first, adjust the wind direction to the blowing gear, and open the external circulation, which can exhaust the steam exhaled by people outside the vehicle, while the cold air outside is not easy to condense.

一般在车窗关闭的情况下，内循环是在风机的作用下，车内的空气循环，由于关闭了外界空气进入的通道，外界的空气进不来，空气比较沉闷；外循环是车内空气循环时，循环系统打开了外界空气进入的通道，有外界空气进来，空气较为新鲜。

Generally, when the window is closed, the internal circulation is the air circulation in the vehicle under the action of the fan. Because the passage for outside air is closed, the outside air cannot enter, and the air is relatively dull; External circulation refers to the circulation of air inside the vehicle. The circulation system opens the passage for outside air to enter. When outside air comes in, the air is relatively fresh.

常用的办法：刚进入车内开空调或热风时，为了使温度迅速达到要求，开内循环；达到温度要求后再开启外循环模式，以使空气新鲜舒适。那么什么时候开外循环好什么时候开内循环好呢？

Common method: When the air conditioner or hot air is turned on when entering the vehicle, in order to make the temperature meet the requirements quickly, turn on the internal circulation; After reaching the temperature requirements, open the external circulation mode to make the air fresh and comfortable. So when is it better to open the outer loop and when is it better to open the inner loop?

1.车外空气质量差，污染严重的情况下（尘土飞扬的道路、拥堵的路段行车、化工厂附近等有臭味或者异味的路段）用内循环可以避免外面较差空气进入车内。

1. When the outside air quality is poor and the pollution is serious (dusty roads, traffic on congested roads, roads near chemical plants and other roads with odor or peculiar smell), the use of internal circulation can prevent poor outside air from entering the vehicle.

2.夏天驾驶自动上料搅拌车，为了使用空调快速降低车内温度，可以使用内循环。

2. In summer, drive the automatic feeding mixer. In order to use the air conditioner to quickly reduce the temperature in the vehicle, internal circulation can be used.

3.自动上料搅拌车在冬天使用内循环可以让车内更温暖。

3. The internal circulation of the automatic feeding mixer in winter can make the car warmer.

雨天驾驶自动上料搅拌车可以定期的开启外循环，使车内进入新鲜空气。不管怎么样，更重要，各位自动上料搅拌车车友在雨天行车定要注意！更多相关内容了解就来我们网站http://www.jfhntjbc.com咨询吧！

Driving the automatic feeding mixer in rainy days can periodically open the external circulation, so that fresh air can enter the vehicle. In any case, safety is more important. All auto charging mixer drivers must pay attention to safety when driving in rainy days! For more information, please come to our website http://www.jfhntjbc.com Consult!