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Method for improving insulation performance of motor

A technology of insulation performance and organic silicon, which is applied in the field of improving the insulation performance of motors, and can solve problems such as the unsatisfactory effect of impregnation and drying of motor stator windings, and the impact on the service life of motor insulation performance.

Inactive Publication Date: 2016-03-30
安徽皖南新维电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing motor stator is made of insulating varnish and epoxy resin. Due to the unsatisfactory effect of dipping and drying the motor stator winding, the insulation performance and service life of the motor are greatly affected.

Method used

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  • Method for improving insulation performance of motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) The acrylic / epoxy primer mixture includes the following components (by weight):

[0058] Acrylic / Epoxy Primer: 40;

[0059] Nano titanium dioxide particles: 5;

[0060] Nano zinc oxide particles: 5;

[0061] Si-alumina-based vitrified microbeads: 5;

[0062] Xylene: 1.

[0063] (2) The silicone polyurethane resin paint / perchlorethylene varnish mixture includes the following components (by weight):

[0064] Silicone polyurethane resin paint / perchlorethylene varnish: 90;

[0065] Acrylic / Epoxy Primer: 5;

[0066] Silica sol: 1;

[0067] Cobalt nitrate: 1;

[0068] Cerium nitrate: 1.

Embodiment 2

[0070] (1) The acrylic / epoxy primer mixture includes the following components (by weight):

[0071] Acrylic / Epoxy Primer: 50;

[0072] Nano titanium dioxide particles: 8;

[0073] Nano zinc oxide particles: 8;

[0074] Si-alumina-based vitrified microbeads: 15;

[0075] Xylene: 5.

[0076] (2) The silicone polyurethane resin paint / perchlorethylene varnish mixture includes the following components (by weight):

[0077] Silicone polyurethane resin paint / perchlorethylene varnish: 95;

[0078] Acrylic / Epoxy Primer: 10;

[0079] Silica sol: 6;

[0080] Cobalt nitrate: 3;

[0081] Cerium nitrate: 3.

Embodiment 3

[0083] (1) The acrylic / epoxy primer mixture includes the following components (by weight):

[0084] Acrylic / Epoxy Primer: 45;

[0085]Nano titanium dioxide particles: 6;

[0086] Nano zinc oxide particles: 6;

[0087] Si-alumina-based vitrified microbeads: 10;

[0088] Xylene: 3.

[0089] (2) The silicone polyurethane resin paint / perchlorethylene varnish mixture includes the following components (by weight):

[0090] Silicone polyurethane resin paint / perchlorethylene varnish: 92;

[0091] Acrylic / Epoxy Primer: 8;

[0092] Silica sol: 4;

[0093] Cobalt nitrate: 2;

[0094] Cerium nitrate: 2.

[0095] After making sample by each embodiment, its test comparison situation is as follows:

[0096]

[0097] After making the samples according to each embodiment, the comparative situation of the withstand voltage test is as follows:

[0098] Test Conditions

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Abstract

The invention relates to a method for improving insulation performance of a motor. The method comprises the following steps of 1, preparing a crylic acid / epoxy resin primer mixture and uniformly mixing the mixture and preparing an organic silicon polyurethane resin paint / vinylidene chloride varnish mixture and uniformly mixing the mixture according to the following weight parts; 2, directly spraying the crylic acid / epoxy resin primer mixture prepared in the step 1 on a motor stator and end covers which are arranged at the two sides of the motor stator, allowing the mixture to stand for 5 to 20 minutes at 10-25 DEG C, and forming a base layer after the mixture is initially solidified; 3, spraying the organic silicon polyurethane resin paint / vinylidene chloride varnish mixture prepared in the step 1 on the base layer of the step 2, and allowing the mixture to stand for 1 to 5 minutes at 10-25 DEG C to form a surface layer; and 4, placing the processed motor stator and the end covers in a baking oven for heating, and then placing the motor stator and the end covers in the baking oven again for cooling, wherein the temperature of the baking oven is 85-125 DEG C, and the heat preservation time is 20 to 60 minutes.

Description

technical field [0001] The invention relates to a method for improving the insulation performance of a motor, which belongs to the technical field of motors. Background technique [0002] Motors are widely used, but the working environment of motors is generally harsh. The main manifestations are: 1. The temperature difference in the working environment is large. For example, in northern China, the lowest outdoor temperature can reach -40°C. It can reach 50℃~60℃. If the temperature is too high, the motor is easy to burn out, and the temperature difference is large, which will cause the insulation performance of the motor coil end to decrease due to large environmental changes, and it is easy to be damaged; The seaside operation is limited by the working environment, and the surrounding area is in a corrosive atmosphere, which has a great impact on all parts of the motor and directly affects its service life; 3. Due to the influence of the working environment, the electrical ...

Claims

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Application Information

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IPC IPC(8): H02K15/10H02K3/32
CPCH02K3/32H02K15/105
Inventor 程润生潘晋刘永健李向前周国胜黄劲东
Owner 安徽皖南新维电机有限公司