PERMANENT-MAGNET ELECTRICAL MACHINE WITH OPTIMIZED GEOMETRY

The invention proposes a permanent-magnet electrical machine (10) which has a stator (16) with slots (20) which are arranged next to one another along a circumference of the stator (16) and are spaced apart from one another by a tooth (18) in each case. The electrical machine (10) further has a rotatably mounted rotor (28), wherein, for each pole (14) of the electrical machine (10), the rotor (28) has a first magnet pocket (34) with at least one first magnet element (36) arranged therein and a second magnet pocket (38) with at least one second magnet element (40) arranged therein and wherein the first magnet pocket (34) and the second magnet pocket (38) each have a magnet pocket height (46). The electrical machine according to the invention is characterised, in particular, in that a ratio of the magnet pocket height (46) to a common pole coverage (48) of the first magnet pocket (34) and the second magnet pocket (38) is between 0.03 mm/°el. and 0.041 mm/°el. As a result, the electrical machine (10) can be optimized, in particular with respect to a torque.