First assembly tests on the stator

A project log for WinDIY_2 - Horizontal Axis Wind Turbine

A new version of the mostly 3D printed windturbine incl. a new version of a 3D printed generator.

FabFab 05/26/2021 at 16:190 Comments

The last few days I also started the first assembly of the stator.

Actually, this was already the second version of the stator. For the first version, I had planned to insert the windings from behind into recesses in the stator. However, they could not be attached well that way. In addition, the heat dissipation would have been very poor because the coils were almost completely surrounded by the stator housing.

The new stator is constructed in such a way that the coils are placed in recesses from the outside and screwed together with two M3 screws. This makes the construction and the fastening even easier and the ventilation better. Additionaly this reduces the air gap between the coils and the magnets by approx. 2mm.

You can see more information, pictures and a video of the installation of a coil insert in the following section.

View of the first stator version (top), the second stator version (bottom) and the stator (white).
Rotor including inserted stator (first version)
Gap between magnets and coils on the first stator version
Gap between magnets and coils on the second stator version
Stator including assembled winding insert
Prepared winding inserts