Manufacturing method of motor stator coils

Abstract

The invention relates to a manufacturing method of motor stator coils, in particular to a manufacturing method of maintenance DC motor stator coils. The motor stator coils comprises coils, a netted insulator, an insulated paint layer, a wire connecting nose and a coil inner lining frame; the coils are wound outside the coil inner lining frame, are shaped through winding and are wound into the netted insulator along a coil winding direction and a coil axial direction in certain angles by binding insulated tapes; the coils are sequentially soaked and dried for 2-3 times with insulated paint to form an insulated layer; the wire connecting nose is fixedly connected with both ends of the coils; and the motor stator coils can prevent powdered carbon oil stains from entering, have good thermal diffusivity and enhanced motor overload capacity, and effectively prevent coil damage.

Description

Technical field: [0001] The invention relates to a method for manufacturing a stator coil of a motor, which is a method for manufacturing a stator coil of a motor, and in particular relates to the manufacture of a stator coil of a high-power DC motor for maintenance. Background technique: [0002] At present, the manufacturing method of the stator coil of the motor all adopts the traditional method: after the wire is wound, the coil is covered with a layer of 0.5-1.2mm thick insulation. The advantages of this are: ① It can prevent dust and oil from entering the coil and cause a short circuit. ② It protects the inner insulation of the coil and avoids the problem of bruising, but the disadvantages are poor heat dissipation, temperature rise, and overload capacity. Poor, internal wire insulation aging quickly, short life; the technical method adopted in recent years is that after winding the coil, the outer layer does not reinforce the insulation protection layer but uses vacuu...

AI Technical Summary

Problems solved by technology

The advantages of this are: ① It can prevent dust and oil from entering the coil and cause a short circuit. ② It protects the inner insulation of the coil and avoids the problem of bruising, but the disadvantages are poor heat dissipation, temperature rise, and overload capacity. Poor, internal wire insulation aging quickly, short life; the technical method adopted in recent years is that after winding the coil, the outer layer does not reinforce the insulation protection layer, but uses vacuum pressure impregnation paint, and presses the resin paint with high viscosity into the wires, and then The advantage of this method is that it can prevent dust and oil from entering, has good heat dissipation, and has a strong overload capacity, but the biggest disadvantage is that most of this resin insulating paint cracks after one year of use. Accelerate the deepening of the cracks, thereby driving the insulation of the wire body to crack, so that after the toner and oil enter, it will cause a short circuit and burn out the coil

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