Device and method for vacuum pressure impregnation of stator winding with frame of motor

Abstract

The invention discloses a vacuum pressure paint dipping device and method for motor belt motor base stator windings. The device comprises a junction box opening sealing pressing plate which is arranged in the junction box opening position of a motor, and two sealing barrels arranged at the two ends of the motor respectively, wherein a closed vacuum-pumping paint dipping cavity is defined by the junction box sealing pressing plate, the two sealing barrels and the motor, and at least one sealing barrel is provided with a vacuum-pumping paint inlet and outlet port which is communicated with the vacuum-pumping paint dipping cavity. The method includes the following steps of firstly, building vacuum-pumping paint dipping space, namely, installing the vacuum pressure paint dipping device for the motor belt motor base stator windings on the motor to form the vacuum-pumping paint dipping cavity; secondly, conducting vacuum-pumping on the vacuum-pumping paint dipping cavity through the vacuum-pumping paint inlet and outlet port of the paint dipping device; thirdly, conducting paint dipping, namely, inputting insulation paint into the vacuum-pumping paint dipping cavity; fourthly, discharging the rest of the paint. The paint dipping device and method has the advantages of being capable of reducing the process cost of vacuum pressure paint dipping for the motor belt motor base stator windings and improving the vacuum-pumping paint dipping efficiency.

Description

technical field [0001] The invention relates to a paint dipping device and method for a wind-driven motor, in particular to a vacuum pressure paint dipping device and method for a stator winding of a large motor with a frame. Background technique [0002] During the repair process of the wind motor stator, the frame and the winding stator core cannot be separated, and the large motor stator has a large size. Taking a 1.65MW wind doubly-fed motor as an example, its size is about φ1000mm×2000mm. At present, there are mainly two methods of vacuum pressure impregnation for the stator winding of the motor with frame. One is to put it directly into the vacuum pressure impregnation device horizontally, which requires a large diameter of the vacuum pressure equipment, and in order to ensure that the entire stator winding of the insulating paint Submersion requires a large amount of insulating varnish; the other is to put it vertically into a vacuum pressure impregnation device, whic...

AI Technical Summary

Problems solved by technology

It can be seen that the production cost of the existing varnishing method is high, and it will cause problems such as a large backlog of production funds, so the overall vacuum pressure varnishing method of the stator winding of the existing motor with frame needs to be improved

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