Unlock instant, AI-driven research and patent intelligence for your innovation.

Cooling device for AC motor

An AC motor, heat dissipation and cooling technology, which is applied in the direction of cooling/ventilation devices, electromechanical devices, pumping devices for elastic fluids, etc., can solve the problem of affecting the heat dissipation effect of the main motor, aggravating the aging of the motor winding, and the aging of the main motor insulation and other problems, to achieve the effect of good heat dissipation and cooling, stable insulation, and reduced maintenance costs

Active Publication Date: 2017-07-28
BAOSHAN IRON & STEEL CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This directly affects the heat dissipation effect of the main motor and aggravates the aging of the motor windings.
[0006] To sum up, there are many problems in the ventilation and cooling of the existing AC motors, which not only cause the insulation aging of the main motor, cause inter-turn short circuit of the winding, shorten its service life, but also directly affect the quality of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cooling device for AC motor
  • Cooling device for AC motor
  • Cooling device for AC motor

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0065] Example 1: The present invention is used in the descaling pump motor of the 2050 main rolling line. The main function is to drive the water pump, send the cooling water to the pipeline, and send the cooling water to the nozzle through the branched pipeline. Hundreds of nozzles spray the cooling water on the rolling mill. The surface of the hot steel plate is quickly cooled, the load of the motor is basically constant at about 80-105%, and the high temperature continues in summer, and the ambient temperature in the basement is as high as 40-47°C. Constant, the heat dissipation and cooling effect is obvious, and the temperature of the main motor winding is effectively controlled below 60°C.

example 2

[0066] Example 2: The output of high-strength steel in the 2050 main rolling line this year has increased by about 60% compared with last year. When producing high-strength steel, in order to meet the cooling effect of the steel plate during the rolling process, the amount of water sprayed is about 35% larger than that of rolling ordinary steel. , that is to say, the load of the motor should be increased by about 25%, that is, the motor works at about 1.2-1.3 times the rated load, and the temperature of the main motor winding is basically constant at about 60°C. It can be seen that the new heat dissipation cooling device ensures the heat dissipation and cooling requirements of the main motor, which plays a good role in preventing the insulating material from aging and becoming brittle, prolonging the service life of the motor, and reducing the maintenance cost of the motor.

[0067] In a word, the heat dissipation cooling device of the present invention optimizes the cooling mo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a heat dissipation and cooling device for an AC motor, which includes an impeller, a conical air collector, a frequency conversion fan motor, a wind pressure detection meter and a cooling assembly; On the outlet shaft of the fan motor, the variable frequency fan motor is installed in a fan box body, and the wind pressure detection gauge is installed on the fan box body. The cooling assembly includes a cooler and a filter, and the cooler includes a cooler body, a water inlet pipe arranged on the cooler body, a water outlet pipe, cooling fins, a cooler air inlet composed of cooling fins, and an air outlet extending from the cooler body. The air duct interface forms the air outlet of the cooler; the filter includes a filter frame, an N-type filter element arranged on the filter frame, a filter mounting frame and a coarse filter element. The invention can keep the inlet air temperature constant at about 25°C, has good heat dissipation and cooling effects, and has a large ventilation volume, can make the temperature rise of the motor normal, the winding insulation stable, and effectively prevent the insulating material from becoming brittle due to aging.

Description

technical field [0001] The invention relates to an AC motor, in particular to a heat dissipation and cooling device for the AC motor. Background technique [0002] AC motors are widely used in various industries such as electric power, coal, metallurgy and other fields. Whether the motor winding temperature is normal or not is not only related to its working system, but also related to the ambient temperature around the motor. The choice of motor duty is usually determined according to the requirements of the process. Many motors have winding insulation aging during use, which is caused by the high temperature of the motor winding due to the unsatisfactory ventilation and cooling effect of the motor. The aging and brittleness of the winding insulation material will cause the inter-turn short circuit fault of the winding, so that the motor cannot run normally. The good insulation of the motor is not only related to the insulation material of the selected winding, but also ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/04H02K7/14F04D29/26
Inventor 陈勤卢海峰沈亮财
Owner BAOSHAN IRON & STEEL CO LTD