STATOR OF AN ELECTRIC MACHINE

• Main Authors: STAMMLER, Jannik, BENSING, Felix, KUEHBACHER, Daniel
• Format: Patent
• Language: English; French; German
• Published: 29.05.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention relates to a stator of an electric machine, comprising a laminated core (3) on which stator teeth (4) and stator grooves (5) are formed. The stator teeth (4) are connected via a stator yoke (7), and a conductor (9) or a conductor bundle (10) comprising a plurality of conductors (9) is arranged in each stator groove (5) in order to form a stator winding (8), wherein each of the stator grooves (5) has a groove base (5.1) and a groove slot (5.2). Each stator groove (5) is equipped with a plurality of support points (11) for supporting the conductor (9) or conductor bundle (10) lying in the respective stator groove (5). At least one groove gap that forms a groove gap channel (14) through which a coolant can flow along a cooling path (15) is formed between the walls of each stator groove (5) and the respective conductor (9) or conductor bundle (10), and each groove gap channel (14) is at least constricted at the connection points (11), wherein - the groove slot (5.2) of each stator groove (5) is closed by a groove closure (16), - a respective bypass (18) is provided in each stator groove (5) at each of the support points (11) in order to conduct the coolant past the constricted support point (11) in the groove gap channel (14), and - the bypasses (18) at the different support points (11) of the same stator groove (5) are arranged at different radial positions such that a meandering cooling path (15) is formed in the stator groove (5).