In a dryer, a crossflow fan performs the following functions:

1. Drying clothes: A crossflow fan creates air flow inside the dryer, distributing the hot air evenly throughout the clothes. This helps speed up the evaporation of moisture and dries the clothes faster by carrying away moisture.

2. Even drying: A crossflow fan ensures that the hot air is evenly distributed throughout the clothes. It circulates the air so that every part of the clothes gets the same amount of heat, avoiding the problem of some parts being over-dried while others are still wet. This helps achieve an even drying effect, ensuring that the entire clothes are dry.

3. Improve drying efficiency: The function of a crossflow fan is to remove moisture and evaporated water from the dryer. By circulating the air, the crossflow fan carries the moisture to the dryer's air outlet, while fresh, dry air enters the drying chamber through the air inlet. This circulation process helps improve drying efficiency and reduces drying time.

4. Avoid tangling of clothes: The air flow of a crossflow fan can also help prevent clothes from getting tangled together during the drying process. By directing the air flow, a crossflow fan can keep clothes dispersed. Reduce the possibility of tangling and tangling, and ensure that clothes can flow freely during the drying process.

In general, the crossflow fan plays the role of evenly distributing hot air in the dryer, accelerating water evaporation and removing moisture. It can improve drying efficiency, ensure that clothes are dried evenly, and reduce the problem of clothes tangling, providing users with a fast and efficient clothes drying experience.