Method and system for varnish dipping of motor with winding stator

Abstract

The invention relates to a paint dipping method and system for a winding stator of a motor. The method comprises the processes of pre-drying, cooling, vacuum paint dipping, paint dripping and baking. The winding stator keeps running in a horizontal rotary state at at least the front section of the baking process until an initial solidification state of paint dipping is reached. The system comprises a pre-drying box, a cooling box, a vacuum paint dipping box, a paint dripping box and a baking box. A rotary bearing mechanism is arranged at at least the front section of the baking box and drives the winding stator to run in the horizontal rotary state until the initial solidification state of paint dipping is reached; the winding stator keeps running in the horizontal rotary state and is baked after pre-drying, cooling and vacuum paint dipping operations, so that the phenomenon of winding paint shortage caused by dripping of paint in the winding stator can be avoided; and the winding stator in the horizontal rotary state enables the paint dipping to be complete and uniform, thereby ensuring the paint dipping quality.

Description

Technical field [0001] The invention belongs to the technical field of motor manufacturing of mechanical drive equipment, and specifically relates to a method and system for dipping a stator of a motor containing windings. Background technique [0002] The dipping paint of the stator with coil windings has a great influence on the performance of the motor, and directly affects the performance and service life of the motor. At present, most of the motor stators with windings adopt vacuum continuous dipping method. Vacuum continuous dipping is the process of pre-baking, cooling, vacuum dipping, and dripping of the stator with windings, and then transfers to the baking process until drying; it introduces vacuum dipping on the basis of continuous dipping, and uses the vacuum environment to improve The permeability of the lacquer allows the tiny gaps that cannot be impregnated by the immersion method to penetrate the lacquer, which improves the insulation performance of the windings....

AI Technical Summary

Problems solved by technology

Vacuum continuous impregnation is to transfer the stator with windings to the baking process until drying after pre-baking, cooling, vacuum impregnation and paint dripping processes; it introduces vacuum impregnation on the basis of continuous impregnation, and uses vacuum environment to improve The permeability of the varnish allows the tiny gaps that cannot be penetrated by the immersion method to penetrate the varnish, improving the insulation performance of the winding; at the same time, it has the characteristics of continuous varnish dipping assembly line production and high degree of automation; If it is arranged on the hanging basket or hanging plate in the vertical direction, when the stator containing the winding is lifted from the vacuum impregnation box and the station of the dripping tank is moving, the stator containing the winding remains vertical until it is transferred to the baking process for painting. Before the initial setting, under the action of gravity, the impregnated paint will flow down from the inside of the stator containing the winding, resulting in the loss of impregnated paint, and there will still be a large amount of insulating paint lost after leaving the paint drip tank station, which will not only cause It caused great waste and polluted the production environment. Since the amount of paint hanging on the stator with windings is obviously less, it has a certain impact on the insulation performance of the stator with windings and the heat dissipation of the motor. It is difficult to meet the requirements of the market and users for high-performance motors.

If you wait for a long time at the dripping tank station, although it can reduce waste and reduce pollution, it will be at the cost of reducing production efficiency, and it still cannot solve the key problem of dipping paint quality

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