Permanent magnet synchronous motor with limited rotation angle

Abstract

A permanent magnet synchronous motor with a limited rotation angle belongs to the technical field of synchronous motors, and comprises a base 1, a permanent magnet 2 and an end cover 3, a bearing 4, arotating shaft 5, an armature core 6 and an armature winding 7; the base 1 is connected with the end cover 3; the permanent magnet 2 is mounted on the inner side of the base 1, and the base 1, the permanent magnet 2 and the end cover 3 integrally form a stator; the rotating shaft 5 is connected with the end cover 3 through the bearing 4; the armature core 6 sleeves the rotating shaft 5; a grooveis formed in the armature core 6, the armature winding 7 is installed in the groove, and the rotating shaft 5, the armature core 6 and the armature winding 7 integrally form a rotor. The armature core6 is located in the permanent magnet 2, and a gap is arranged between the armature core 6 and the permanent magnet 2. The motor is small in size, high in torque density, low in rotating speed and high in efficiency.

Description

technical field [0001] The invention relates to a limited rotation angle permanent magnet synchronous motor, in particular to a low speed, high efficiency and high torque density limited rotation angle motor. Background technique [0002] The design and development of bionic fish is the crystallization of the integration of many high-tech disciplines, and it is an integrated design system of mechanics, optics, electricity, computer technology, automatic control, material technology, sealing technology and fluid mechanics. Developed countries such as Europe, America and Japan started earlier in the field of theoretical research and design of bionic fish. As a rising star, China has also achieved fruitful results in the research of bionic fish. However, compared with real fish, bionic fish still has a certain gap in swimming speed, maneuverability and swimming efficiency, and more in-depth research on the theory and system design of bionic fish is needed. [0003] The main dr...

AI Technical Summary

Problems solved by technology

The traditional permanent magnet synchronous propulsion motor is to inlay the armature winding in the stator core, which is fixed by the base and the external structure, which is called the stator part; the rotor composed of the permanent magnet, the rotor core and the rotating shaft drives the load to rotate; The space of the motor is limited and the torque density is very high. The common inner rotor permanent magnet synchronous propulsion motor in the prior art is not suitable as the main drive motor for bionic fish

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