Paint immersing method of stator of outdoor open-type motor

A motor stator and open-type technology, which is applied in the field of outdoor open-type motor stator impregnation, can solve the problems of loss and loss, and achieve the effect of improving the effect of impregnating paint and increasing the amount of remnants

Active Publication Date: 2010-05-12
XINJIANG GOLDWIND SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the motor drips paint in the dipping tank, the dipping paint will be lost under the action of its own gravity and in the process of pressurizing the paint, so it loses t

Method used

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  • Paint immersing method of stator of outdoor open-type motor
  • Paint immersing method of stator of outdoor open-type motor
  • Paint immersing method of stator of outdoor open-type motor

Examples

Experimental program
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Example Embodiment

[0022] refer to Figure 1 to Figure 7 One embodiment of the present invention is described:

[0023] (1) Keep the non-outlet end 1 of the vertical motor stator upward;

[0024] (2) Hang the stator into the drying room 3, keep the temperature at 155°C, and pre-bake for 2.5 to 3 hours;

[0025] (3) Vacuuming: Cool the pre-baked motor stator to a specified temperature (such as 60-80°C), then hang it into the dipping tank 4, and vacuumize until the residual pressure is below 670Pa. Slowly input the impregnating paint in the paint storage tank 5 into the paint impregnating tank 4, and make the liquid level of the paint be higher than the highest point of the motor stator by more than 40 mm. During the input process of the dipping varnish, the dipping varnish tank 4 is continuously evacuated until the input varnish is no longer bubbling, and then the vacuum is released for another 10-15 minutes;

[0026] (4) Pressure dipping: after the vacuum is released, pressurize the dipping t...

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Abstract

The invention provides a paint immersing method of a stator outdoor of an open-type motor, which is characterized by comprising the steps of: firstly, potting the end part of one end of the stator subject to primary vacuum paint immersion (VPI) with a potting adhesive, and then overturning, wherein a semi-closed surface is formed at the end part of the potting adhesive and immersion paint on the surface of the stator; and secondly, carrying out secondary paint immersion, wherein since the potting adhesive at the lower end exists, the immersion paint can not be lost because of the gravity during the secondary paint immersion, which not only can obviously increase the remain amount of paint in a stator slot and remarkably enhancing the paint immersion effect, and can lead the motor to operate more safely and reliably. The invention has broader application range, and is especially suitable for the outdoor open-type motor.

Description

technical field [0001] The invention relates to a method for dipping paint on the stator of an outdoor open type motor. Background technique [0002] For special motors operating in harsh environments, such as wind turbines, marine motors, etc., special treatment is required for their insulation systems, and the stator dipping process is an important link to ensure the insulation performance of the motor. At present, the method of vacuum impregnation (VPI) is mainly used for dipping paint. The whole process includes: pre-baking, vacuuming, vacuum conveying paint, pressure impregnation, dripping paint, and drying. When the motor is dripping paint in the dipping tank, the dipping paint will be lost in large quantities under the action of its own gravity and in the process of pressurizing and repainting, so it loses the function of protecting the insulation in the tank. The structure of the motor is particularly prominent. SUMMARY OF THE INVENTION [0003] The task of the p...

Claims

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Application Information

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IPC IPC(8): H02K15/12
Inventor 朱川江陈小海
Owner XINJIANG GOLDWIND SCI & TECH
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