Motor forming coil insulation thinning method

Abstract

The invention provides a motor forming coil insulation thinning method comprising the following steps: selecting an insulating material to wrap a copper flat wire to make a coil; half-lapping the coil with an insulating tape to form a coil mica insulation; binding up an insulating protective tape outside the coil mica insulation to form a protective insulation; sealing and binding up the end of the coil; and placing the coil bound up tightly on a lacquer dipping tool, taking solvent-free impregnating resin as impregnating resin, removing the seal and bandage at the end of the coil after the coil is impregnated at vacuum pressure, baked and cured, carrying out winding stator line embedding and arranging work, and after that, impregnating the winding-containing stator core at vacuum pressure and baking and curing the stator core. The coil mica insulation and the protective insulation constitute a coil main insulation of which the single-side thickness is less than or equal to 0.98mm. Through the method provided by the invention, the insulation thickness of the motor forming coil is reduced. The motor size is reduced under the condition of same power, and the power is increased and energy saving and consumption reducing are achieved under the condition of same size.

Description

Technical field [0001] The invention relates to the field of high-voltage motor manufacturing, in particular to a method for thinning the insulation of a 3.3KV (F-level) high-voltage motor forming coil. Background technique [0002] As we all know, the future development direction of motors is small size, high power, and high efficiency. The power of the motor increases with the increase of the slot utilization rate; the volume of the motor decreases with the increase of the slot utilization rate; the efficiency of the motor increases with the increase of the slot utilization rate. Improving the utilization of motor slots has become the focus of research by motor manufacturers in various countries. The utilization of motor slots is limited by the proportion of insulating materials. Whoever can reduce the thickness of the insulation will occupy the commanding heights of motor manufacturing. [0003] At present, the domestic mature and reliable 3.3KV (F-level) high voltage motor has...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic mature and reliable 3.3KV (F-class) high-voltage motors form a single-sided insulation thickness of 1.25mm. Some motor manufacturers are limited by the design of the insulation structure, and the single-sided insulation thickness of the coil may reach about 1.5mm.

Images