Direct drive atomizer

The present invention discloses a direct drive atomizer. The direct drive atomizer comprises a case, the case is internally provided with a rotation shaft, the case is internally provided with a frontbearing chamber corresponding to a front high-speed bearing and a rear bearing chamber corresponding to a rear high-speed bearing, the front bearing chamber and the rear bearing chamber are respectively sleeved with a front bearing chamber outer coating and a rear bearing chamber outer coating, a built-in motor stator is in interference sleeving with a cooling water jacket, and cooling water jackets are arranged between the front bearing chamber and the front bearing chamber outer coating, between the rear bearing chamber and the rear bearing chamber outer coating and between the cooling water jacket and the case to cool the front high-speed bearing, the rear high-speed bearing and the built-in motor stator. Through design of water-cool and air-cool layout improvement of the atomizer, thesame high-pressure gas is