Lappeenranta University of Technology

Lappeenrannan Teknillinen Yliopisto

Lappeenranta-Lahti University of Technology Lut

Robert Semken

Juha Pyrhönen

Yulia Alexandrova

Maria Polikarpova

Janne Nerg

Hanne Jussila

Pekka Röyttä

A segment for supporting electromagnetic coupling elements of a stator or rotor of an electrical machine comprises a plurality of elongate laminations which are stacked in a first direction to form a lamination stack with elongate edges of the laminations defining opposite first and second major faces of the lamination stack. The segment comprises a plurality of elongate compression devices passing internally through the lamination stack in the first direction and arranged to compress together the laminations in the lamination stack.

Electrical machine

A stator of an electrical machine includes a stator core having a plurality of stator teeth and stator slots, and a stator winding having a plurality of stator coils. The width of each stator coil is one stator slot pitch, and the stator teeth are shaped to allow each stator coil to be installed by pushing the stator coil to surround one of the stator teeth. The stator coils include tubular cooling channels for conducting cooling liquid in the stator slots.

Electric machine with modular stator coils and cooling tubes

Growing community of inventors

Lappeenranta, Finland

Robert Semken