A lobe split combination stator

Abstract

A lobe split combination stator includes an annular expansion sleeve, an annular stator iron core formed by a plurality of sector iron core units connected in series with each other, the middle of both sides of the sector core unit is provided with grooves, the two sides of the lower part of the sector-shaped iron core unit are respectively provided with a tenon and a tenon groove, As that two adjacent sector core unit are are inlaid with each other to form an annular stator core through the tenon, and grooves;, the stator coil windings with several turns are wound on the grooves of each sector-shaped iron core unit by wires, and then adjacent sector-shaped iron core units are embedded together to form an annular stator core wound with the stator coils, and the annular expansion sleeve interference mosaic is embedded into the combined annular stator core inner hole. Compared with the prior art, The invention has the advantages that the stator notch need not be very large, the slot full rate is high, the relative volume of the motor is small, the enameled wire can be effectively avoided from touching the notch, the material utilization rate is high, the torque ripple and the noiseare low.

Description

Technical field [0001] The invention relates to a permanent magnet synchronous motor and a generator with an outer rotor structure, in particular to the field of low-speed, multi-pole motors. Background technique [0002] With the development of society, labor costs are getting higher and higher. The motor stator urgently needs to be transformed from manual wire embedding to machine wire embedding. Most of the automatic wire embedding adopts integral iron core and concentrated winding, and the winding adopts flying fork winding method, especially It is a stator with a relatively large volume and weight. Almost all stator cores are fixed and flying fork winding is used. This kind of stator structure is shown in Figure 4 , The disadvantages of this stator and winding method: [0003] 1. The stator slot must be large, and the torque ripple and noise are relatively large; [0004] 2. The slot full rate generally does not exceed 50%, and the motor volume is relatively large; [0005] 3. T...

AI Technical Summary

Problems solved by technology

[0003] 1. The slot of the stator must be large, and the torque ripple and noise are relatively large;

[0004] 2. The slot full rate generally does not exceed 50%, and the motor volume is relatively large;

[0005] 3. The enameled wire must pass through the notch of the stator core during winding, so the enameled wire often touches the notch and damages the wire during the winding process;

[0006] 4. Conventional stamping is mostly processed by integral stamping and blanking, and the material utilization rate is not high

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