Interturn insulating structure of super-thin 6kV high-voltage motor and manufacturing method of interturn insulating structure

Abstract

The invention relates to an interturn insulating structure of a super-thin 6kV high-voltage motor and a manufacturing method of the interturn insulating structure. The interturn insulating structure comprises a wire insulating layer which comprises a multilayer-wrapped polyester film less-glue mice tape, the polyester film less-glue mice tape includes two layers which are wrapped by means of clearance wrapping, clearance sizes of the first layer and the second layer are set to be X1 and X2 respectively (0<X1< / =0.1mm, 0<X2< / =0.2mm), clearances of the first layer and the second layer are uniformly staggered, the distance between the clearance of the first layer and the adjacent clearance of the second layer is 1 / 2 of the width of the polyester film less-glue mice tape, and two-side insulating thickness of the interturn insulating structure is 0.29-0.34mm. On the premise that insulating performance is guaranteed, the two-side insulation thickness of interturn insulation can be reduced to be smaller than 0.34mm, so that superthin effect of the interturn insulating structure is realized.

Description

technical field [0001] The invention belongs to the technical field of motor insulation, and in particular relates to a turn-to-turn insulation structure of a 6kV motor and a manufacturing method thereof. Background technique [0002] High power and small size are the development direction in the field of high voltage motors. Reducing the size of the motor under the same power can not only save manufacturing costs, improve the thermal performance of the motor, and reduce the temperature rise of the motor; it can also reduce the weight of the motor, which is convenient for transportation, use and installation. [0003] Under the same power, reducing the size of the motor, reducing the insulation size (including inter-turn insulation and main insulation) and increasing the slot fullness are the key. The reduction of insulation size is a pair of contradictions with insulation quality and insulation reliability. Only a scientific and reasonable insulation structure can make th...

AI Technical Summary

Problems solved by technology

And as mentioned above, the ordinary flat-wrap method is not conducive to the thinning of the inter-turn insulation because of the small overlap in practice. Therefore, the structure of Reference 1 cannot really realize the ultra-thin inter-turn insulation

[0005] To sum up, the existing turn-to-turn insulation structure of 6kV high-voltage motors cannot really reduce the thickness under the premise of ensuring the insulation performance.

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