33results about How to "Adequate cooling" patented technology

This invention discloses a stator frame for reducing the temperature difference of the stator in a long-core permanent magnet wind turbine at high altitudes, relating to the field of permanent magnet direct-drive wind turbine technology. The frame consists of a cavity formed by a first ring plate, a third ring plate, a fourth ring plate, and a fifth ring plate. A second ring plate divides the cavity into left and right chambers. Multiple axial stiffeners are spaced apart within each chamber, further dividing it into multiple axial cavities. These axial cavities are evenly distributed along the circumference of the stator frame. Ventilation channels on the second ring plate connect the left and right axial cavities, forming an axially longer cavity. Adjacent axially longer cavities are respectively an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the external air inlet space, and the air outlet cavity is connected to the external air outlet space. This reduces the difference in airflow in the stator core ventilation channels, thereby ensuring more sufficient air cooling for each core segment and the stator coils located within each core segment, improving the cooling effect.