Motor winding component and injection molding motor with winding component

Abstract

The invention relates to a motor winding component and an injection molding motor with the winding component. The component is a winding component formed by two times of plastic coating, and the winding component comprises a winding part, a low-pressure injection molding part and a high-pressure injection molding part; and the low-pressure injection molding part firstly carries out plastic coating molding on the winding part to form a low-pressure injection molding pre-forming assembly, and the low-pressure injection molding pre-forming assembly is subjected to plastic coating molding through the high-pressure injection molding part. Compared with the prior art, the invention has the advantages of being suitable for complex working conditions, high in product percent of pass, high in finished product reliability and the like.

Description

technical field [0001] The invention relates to the field of injection molding motors, in particular to a motor winding part and an injection molding motor with the winding part. Background technique [0002] With the development trend of miniaturization of terminal products, the motor as its power component, according to the traditional motor structure, can not meet the customer's installation space requirements, so a plastic package (injection molding) motor application was born. The designated sub-assembly (winding part) of the injection motor forms the structural support part of the motor through high-pressure injection molding, which provides a basis for the miniaturization of the motor, and the injection material fills the gap between the stator core and the winding to form a solid body, which improves the thermal conductivity and is more conducive to the operation of the motor. In the stator heat dissipation, this process has certain competitive advantages, and the in...

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Problems solved by technology

[0004] 1. The enameled wire is subjected to high-temperature heat transfer of the injection plastic, which may easily cause damage to the insulating film on the surface of the enameled wire, and breakdown between turns of the coil;

[0005] 2. The diameter of the winding enameled wire is generally relatively small. During the injection molding process, the enameled wire is affected by the huge impact force generated by the injection plastic flow and the internal stress generated by the injection plastic curing, which may easily cause the enameled wire to break;

[0006] 3. The structural strength of the stator winding is limited, and it is easy to deform under the impact force, causing the enameled wire to leak out of the injection molding material

[0007] Based on the above problems, the qualification rate and reliability of the product are affected, thus limiting the application conditions of this type of motor

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