A crossflow fan is a common type of fan characterized by air flow parallel to the axis. In refrigerators and freezers, crossflow fans are often used to achieve air circulation to improve air flow and temperature uniformity in the refrigerated space, thereby ensuring better refrigeration or freezing of food.

The following are the main applications of crossflow fans in refrigerators and freezers:

1. Temperature uniformity is crucial to the refrigeration or freezing of food. Crossflow fans can promote air circulation and distribute cold air evenly throughout the refrigerated space, preventing temperature differences from causing premature spoilage or freezing of some parts.

2. Reduce temperature gradients: Crossflow fans can reduce temperature gradients in the refrigerated space, that is, the temperature differences at different locations. This helps ensure that when refrigerating or freezing food, the temperature at each location can reach the required low temperature, thereby extending the shelf life of the food.

3. Prevent condensation: During the refrigeration or freezing process, crossflow fans help prevent condensation from forming inside refrigerators and freezers, especially in high temperature environments. By promoting air flow, the fan can remove moisture from the refrigerated space, reduce the formation of condensation, and prevent food from getting damp and freezing.

4. Rapid cooling: Crossflow fans can accelerate air circulation inside refrigerators and freezers, so that food can reach the required refrigeration or freezing temperature more quickly. This is very useful for situations where food needs to be cooled quickly to extend the shelf life or preserve the quality of food.

In general, the application of crossflow fans in refrigerators and freezers is mainly to improve air circulation efficiency, ensure uniform temperature in the refrigerated space, prevent condensation and accelerate food cooling, thereby improving the preservation effect and quality of food.