Water cooling: The heat generated inside the body is taken away through water circulation inside and outside the body.
Air cooling: Use one or more large fans to force exhaust air to the body to dissipate heat.
Principle: For motors with the same technical parameters, water cooling is small in size, light in weight, has a high density of water, the heat exchange performance of water is better than that of wind, and the cooling effect of water of the same volume is better than that of wind.
Those with higher power are generally water-cooled, while those with lower power can be air-cooled. Air-cooled generators have better environmental adaptability and can adapt to all application environments, while water-cooled engines have more environmental requirements, complex structures, and high prices.