High-reliability half stator-tooth winded stator-surface mounted permanent magnet motor

Abstract

The invention relates to a high-reliability half stator-tooth winded stator-surface mounted permanent magnet motor which comprises a stator (1) and a rotor (4). The rotor (4) is arranged inside or outside the stator (1). The high-reliability half stator-tooth winded stator-surface mounted permanent magnet motor is characterized in that: the stator (1) is in a salient pole structure and provided with stator teeth (1-1) which protrude from a yoke part; armature winding slots (1-2) are formed among the stator teeth (1-1), the stator teeth (1-1) and the armature winding slots (1-2) are distributed alternatively, the stator (1) is provided with a centralized armature winding (2) and permanent magnets (3), and only half of the stator teeth (1-1) are winded by armature winding coils and provided with the mounted permanent magnets so that half of permanent magnets is saved and the areas of the armature winding slots are increased. Only half of the stator teeth (1-1) are dotted with the permanent magnets (3), and the magnetizing directions of the permanent magnets (3) are same between the gap of the stator (1) and the rotor (4). The centralized armature winding (2) is arranged on the stator teeth (1-1) of the stator (1) provided with the permanent magnets. The high-reliability half stator-tooth winded stator-surface mounted permanent magnet motor has the advantages of simple and firm structure, strong torque output capacity, large power density and high reliability.

Description

technical field [0001] The invention is a motor with simple structure, firmness, high reliability, large torque output capacity, high power density and large output per unit magnetic steel, which relates to the technical field of motor manufacturing, and in particular relates to an armature A stator surface-mounted doubly salient permanent magnet motor with a half-tooth winding. Background technique [0002] As the country with the largest reserves of rare earth materials in the world, our country vigorously researches and promotes the application of various new permanent magnet motors represented by rare earth permanent magnet motors, which has important theoretical significance and application value. Over the past decade or so, research hotspots have been focused on rotor permanent magnet motors represented by surface-mounted, plug-in and built-in types. However, the type of motor with permanent magnets placed on the rotor will cause a series of problems in the design and...

AI Technical Summary

Problems solved by technology

Its purpose is to obtain a bipolar permanent magnet flux linkage, but this structure directly leads to a short circuit between the two magnets and the stator teeth, resulting in serious magnetic flux leakage, which reduces the utilization rate of the unit magnet

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