Enameled wire for an oil-cooled motor of new energy automobile and production and processing technology thereof

Abstract

The invention discloses an enameled wire for an oil-cooled motor of a new energy automobile and a production and processing technology thereof, and belongs to the technical field of enameled wire production and processing. The enameled wire comprises a copper conductor, a primer layer, a middle paint layer and a finish paint layer, the primer layer adopts high-adherence polyamide-imide paint, the middle paint layer adopts corona-resistant polyimide paint, the finish paint layer adopts oil-resistant and hydrolysis-resistant polyamide-imide paint, the paint film thickness of the primer layer accounts for 3%-20% of the total paint film thickness, the middle layer accounts for 40%-90% of the total paint film thickness, and the finish paint layer accounts for 3%-20% of the total paint film thickness. According to the invention, three different types of insulating paint are combined for coating, and the primer layer, the intermediate paint layer and the finish paint layer are respectively coated with different types of paint, so that the primer layer, the intermediate paint layer and the finish paint layer play respective advantages and make up for deficiencies, and finally, the enameled wire for the oil-cooled driving motor of the automobile, which has the advantages of corona resistance, high winding property, mechanical shock resistance and strong oil-water resistance, is prepared.

Description

technical field [0001] The invention relates to the technical field of enameled wires, in particular to a production and processing process of enameled wires for oil-cooled motors of new energy vehicles. Background technique [0002] The driving motor of new energy vehicles is one of the core components of new energy vehicles. Compared with traditional industrial motors, new energy vehicle driving motors have high integration, high working efficiency, high power density, high safety level, high cost performance and low noise. specialty. The drive motor is the core component of the car, and the enameled wire is the key raw material of the drive motor, so higher requirements are put forward for the enameled wire. [0003] The second generation of new energy vehicles is a three-in-one motor, gearbox, and electronic control system. The motor needs to be completely immersed in the gearbox oil. Corrosion of the enameled wire leads to loss of insulation and short circuit, and acc...

AI Technical Summary

Problems solved by technology

[0003] The second generation of new energy vehicles is a three-in-one motor, gearbox, and electronic control system. The motor needs to be completely immersed in the gearbox oil. Corrosion of the enameled wire will lead to loss of insulation and short circuit, and accidents will occur in severe cases. Moreover, the energy efficiency ratio of new energy vehicles is high in design, and the processing deformation is complicated. The enameled wire needs to have strong corona resistance, high winding performance, and mechanical shock resistance. Sex, oil and water resistance, these two problems are the problems faced by the entire enameled wire industry in 2019, which once hindered the development of a new generation of new energy vehicles

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