Stator resin trickling technique and resin trickling device

Abstract

The invention refers to a stator paint dropping technique and paint-dropping device. The method: only when the paint dropping heat contacts the stator coil, the insulating paint can be output to droppaint; the paint-dropping device is composed of clamp, paint dropping head, elastic collet, active bracket and vernier bracket. The paint dropping head has the ability to store paint and adopts contact-type and intermittent paint dropping.

Description

Technical field: [0001] The invention relates to a stator paint dripping process and a paint dripping device, which can be used for the insulation treatment of bipolar stators used in electric tools and household appliances, and belong to the technical field of bipolar stator insulation treatment. Background technique: [0002] For decades, the stator insulation treatment process of series motors for electric tools has been using the solvent impregnation method, that is, after the stator is dried, it is immersed in a paint vat, and then it is lifted and placed in an oven for drying. In order to ensure the stability of the varnish, a large amount of toluene and xylene solvents are added to the insulating varnish. After a period of time, the viscosity of the varnish becomes larger. Solvents must be added to the lacquer tank to maintain the manufacturability. During the insulation process, these The solvents are all volatilized into the air, and the solvents of toluene and xyle...

AI Technical Summary

Problems solved by technology

In order to ensure the stability of the varnish, a large amount of toluene and xylene solvents are added to the insulating varnish. After a period of time, the viscosity of the varnish becomes larger. Solvents must be added to the lacquer tank to maintain the manufacturability. During the insulation process, these The solvents are all volatilized into the air, and the solvents of toluene and xylene are highly toxic and flammable. Using a large number of impregnating paints containing solvents will undoubtedly cause great pollution to the environment and bring harm to the health of operators. Great harm, but also a great fire hazard

Due to the large amount of solvent volatilized, the amount of impregnating varnish is very large, and the cost of motor manufacturing remains high. Based on the above factors, it is proposed to use dripping instead of immersion in the insulation treatment of bipolar stator coils for electric tools and other household appliances. However, when the stator of the series motor is dripping paint, because there is a large gap between the two coils, when the paint dripping head drops to the gap, the paint will not drip onto the coil, but will flow to the paint dripping machine, which is not only wasteful paint, but also pollute the paint machine

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