Manufacturing method for stator

Abstract

The invention belongs to the field of motors, and discloses a manufacturing method for a stator. The manufacturing method includes the following steps that according to the split manufacturing step of an iron core, at least three split bodies which can be axially stacked to form the stator iron core are manufactured; according to the winding step, stator windings are wound around the split bodies respectively, and branch winding coils are formed on the split bodies respectively; according to the assembling step, the split bodies where the branch winding coils are wound are axially stacked to form the stator. Large spaces can be provided for winding performed on the split bodies independently, in this way, the winding efficiency of the stator iron core is improved, the slot fullness rate of the stator is increased, and the material cost of the stator is lowered; openings of winding slots in the stator iron core can be designed to be small, and therefore the performance of a motor is improved. Meanwhile, because the split bodies are axially stacked and assembled, the roundness precision of the stator is guaranteed; the split bodies do not need to be welded, in this way, the assembling process is simplified, and then the production efficiency of the stator is easily improved.

Description

technical field [0001] The invention belongs to the field of motors, in particular to a manufacturing method of a stator. Background technique [0002] A traditional manufacturing method of the motor stator is as follows: First, the stator punches are punched out as a whole, and then the stator punches are laminated to form an integral stator core, and then the stator winding is wound on the integral stator core by a winding machine . The traditional manufacturing method of the stator has the following defects in specific applications: due to the limitation of the winding space requirements, the slot fill rate is not high, and the opening of the slot on the stator core needs to be designed larger, which affects the Improved motor performance. [0003] In order to solve the above-mentioned technical problems in the traditional stator manufacturing method, the prior art proposes two schemes for winding the stator core separately: [0004] 1) One solution is to completely se...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a manufacturing method for the stator, which solves the technical problems of the prior art that the stator iron core split design causes the stator roundness accuracy to decrease and the assembly process is complicated after the winding is completed

Images