Stator for efficient and super-efficient three-phase asynchronous motors

Abstract

The invention discloses a stator for efficient and super-efficient three-phase asynchronous motors, which comprises a plurality of stator core sheets and two pressing sheets positioned at the end parts of the stator core sheets, wherein a plurality of W-shaped notches are arranged on the excircle circumferences of the stator core sheets and the pressing sheets at intervals, meanwhile, the stator formed by the overlapping of the stator core sheets and the two pressing sheets is provided with an axial W-shaped welding groove formed by the overlapping of the W-shaped notches on the excircle circumferences, the stator core sheets and the two pressing sheets are fixed in the W-shaped welding groove in a welding manner to ensure that the production efficiency of the stator is greatly improved, the materials used in a stator core manufacturing process are reduced, and the cost is lowered, and ensure that the mechanical strength of a stator core and the accuracy of the verticality can be improved, the lamination coefficient of the stator core sheets is increased, the stray loss, the core loss and the eddy-current loss are decreased, thus the output efficiency of a motor is improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stator of a high-efficiency and ultra-high-efficiency three-phase asynchronous motor. Background technique [0002] The use of electric motors is quite common in people's daily life. At the same time, people are constantly improving and improving the electric motor and the manufacturing process of the electric motor according to the different use occasions of the electric motor. [0003] In the traditional three-phase asynchronous motor stator manufacturing process, several buckle slots are processed on the outer circumference of the stator, the stator buckle is placed in the slot, and the stator core is fixed by the stator buckle. [0004] The disadvantage of the above-mentioned process is that the mechanical strength of the stator core and the verticality accuracy of the stator core are not high, and the lamination coefficient of the stator core sheet is not high, resulting in...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned process is that the mechanical strength of the stator core and the verticality accuracy of the stator core are not high, and the lamination coefficient of the stator core sheet is not high, resulting in large stray losses, core losses, and eddy current losses of the motor, and the stator More materials are used in the manufacturing process of the iron core, and the cost is higher. In addition, the output efficiency and production efficiency of the motor are not high enough.

Images