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Paint immersing method of stator of outdoor open-type motor

A motor stator and open-type technology, which is applied to the field of outdoor open-type motor stator dipping, can solve the problems of loss and loss, and achieve the effect of improving the dipping effect and increasing the amount of remains.

Active Publication Date: 2014-03-12
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 the function of protecting the insulation in the tank. This problem can only be solved by vertical dipping special The structure of the motor is particularly prominent on the

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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Effect test

Embodiment Construction

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

[0023] (1) Keep the non-outlet end 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-dry 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 paint dipping tank 4, and evacuate it until the residual pressure is below 670Pa. The dipping paint in the paint storage tank 5 is slowly input into the dipping paint tank 4, and the liquid level of the paint is higher than the highest point of the motor stator to reach more than 40mm. During the impregnating paint input process, vacuumize the impregnating paint tank 4 continuously until the input paint liquid no longer bubbles, and then continue for 10 to 15 minutes before releasing the vacuum;

[0026] (4) Pressure impregnation: After the vacuum is released, pressuriz...

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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 an outdoor open-type motor stator impregnating method. 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 varnish dipping process is an important link to ensure the insulation performance of the motor. At present, the vacuum impregnation (VPI) method is mainly used for impregnation. The whole process includes: pre-baking, vacuuming, vacuum paint transfer, pressure impregnation, paint dripping, and drying. 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 the function of protecting the insulation in the tank. This problem can only be solved by vertical dipping special The structure of the motor is particularly prominent. Contents of the invention [0003] T...

Claims

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Application Information

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