Electric machine and a manufacturing and mounting method thereof

Abstract

The invention provides an electric machine and a manufacturing and mounting method thereof. The motor comprises a housing, a stator and a rotor. The stator is arranged in the housing; The rotor is arranged on the radial inner side of the stator; The stator has a stator slot and a stator winding. The stator winding is made of a copper strip conductor, and the outside of the copper strip conductor is provided with insulating paint; The stator winding includes a plurality of straight segments and at least one connecting segment connecting the two straight segments. At least one straight segment is arranged in each stator groove; The stator further has a plurality of first insulating sleeves, each of the first insulating sleeves being made of flexible material; Each end of each stator groove is provided with at least one first insulating sleeve to be sleeved on a straight section and a corresponding connecting section; a plurality of second insulating sleeves with each of the second insulating sleeves being made of a flexible material; And each second insulating sleeve is sleeved in the middle of each connection section. Long service life is prolonged after insulation effect.

Description

technical field [0001] The invention relates to the field of motors, in particular to a motor and a manufacturing and installing method thereof. Background technique [0002] At present, in recent years, with the continuous development of the motor industry, motor manufacturers continue to pursue small size and high power density, and motors have high design requirements for power density and compact structure. The stator slot full rate is one of the important indicators affecting the power density of the motor. A motor with a high slot full rate has higher power density and efficiency. The shape of the coil is one of the important indicators affecting the compactness of the motor structure. The coil is wound by a conductor The conductors are divided into round conductors and square conductors. Although the conductor is conducive to the improvement of the performance of the motor, it requires high technology in terms of forming and off-line. During the off-line process, the...

AI Technical Summary

Problems solved by technology

Although the conductor is conducive to the improvement of the performance of the motor, it requires high technology in terms of forming and off-line. During the off-line process, the diameter of the square wire is thick, and the bending and stretching process will damage the wire insulation paint, which will affect the insulation of the wire. performance

[0003] In addition, more and more materials with high electromagnetic load and thermal load are used in the design of the motor, and the loss generated during the operation of the motor increases, resulting in an excessively high temperature rise of the whole motor or a high local temperature rise, which will not only reduce the service life of the motor, Affect the economic and technical indicators such as the efficiency and torque of the motor, and also cause serious deformation of the structural components of the motor, endangering the safety of the motor operation

Moreover, the inventor also found that the existing motors consume more energy for heat dissipation, resulting in waste of resources

In addition, during the working process of the existing motor, strong vibration will be generated due to the excessive rotation of the rotor, which will lead to unstable operation of the motor and affect the stable operation of the motor

Images