Stator assembly of outer rotor motor

Abstract

The invention aims to provide a stator assembly, which can improve the output power of an outer rotor motor, has a good insulation effect and is convenient to process and assemble, of the outer rotormotor. The stator assembly of the outer rotor motor comprises a stator iron core and stator frameworks arranged at two axial ends of the stator iron core, the stator iron core comprises an iron core ring part and iron core tooth parts located in the circumferential outer side of the iron core ring part. Each stator framework is composed of a framework ring part and a framework gear sleeve part which is arranged outside the iron core gear part in a sleeving mode and located outside the framework ring part in the circumferential direction. The framework tooth sleeve parts are in one-to-one correspondence with the iron core tooth parts and are provided with accommodating grooves matched with the iron core tooth parts; winding grooves for giving way to windings are formed between the adjacentframework tooth sleeve parts, the axial end parts of the framework tooth sleeve parts extend outwards in the circumferential direction to form positioning plates located in the axial sides of the outer ends of the iron core tooth parts, and limiting blocks are arranged in the sides, away from the stator iron core, of the positioning plates.

Description

technical field [0001] The invention relates to a motor stator, in particular to a stator assembly of an outer rotor motor. Background technique [0002] Such as the patent application number 201120185580.8 figure 1 and figure 2 , the winding coil needs to be wound on the stator, and the insulation between the winding coil and the stator core needs to be ensured. For the stator core with a small axial length, the stator frame (coil frame) is directly assembled at both ends of the stator core. The skeleton covers the core slot surface of the stator core. Wherein, for a stator core with a long axial length, insulating paper is also placed in the core slot to isolate the stator core from the winding. [0003] There are the following problems, the number of turns of the winding should not be too many, otherwise the two ends of the winding coil will be deflected outward in the circumferential direction, so that the winding coil may be in contact with the rotor, and the existi...

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Problems solved by technology

[0003] There are the following problems, the number of turns of the winding should not be too many, otherwise the two ends of the winding coil will be deflected outward in the circumferential direction, so that the winding coil may be in contact with the rotor, and the existing external rotor motor has the problem of too small output power

[0004] And some stator cores have a large number of core slots, and some stator cores have more than 20 or even more than 30 slots, which makes it difficult to process the stator frame, and the defective rate is high. Once there is a little processing The problem will cause the stator frame to be difficult to assemble with the stator core

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