The winding structure in washing machine motor

Update:30 Oct 2023

The winding structure of the washing machine motor is a […]

The winding structure of the washing machine motor is an important part of the motor, which directly affects the performance, efficiency and stability of the motor.
material selection:
The basis of the winding structure is a material with excellent electrical conductivity properties, usually copper or aluminum as the conductor material. This is because copper and aluminum have good electrical and thermal conductivity, which can effectively reduce energy loss when current passes through the windings and improve the efficiency of the motor.
Winding shape:
The shape of the windings has an important influence on the performance of the motor. The winding shape of the washing machine motor usually adopts slot winding or split slot winding. Slot winding places wires in slots, which can increase the fill factor of the coil and reduce resistive losses. The split-slot winding is divided into multiple windings in each slot, which helps to reduce the inductance of the winding and improve the response speed of the motor.
Overlapping method:
The overlapping method of the windings involves the connection method of the coils. In washing machine motors, parallel overlapping or series overlapping are generally used. Parallel connection can reduce the resistance and improve the performance of the motor, but it will also increase the inductance; series connection can reduce the inductance, but the resistance is relatively large. According to the needs of motor design, engineers will choose the appropriate overlapping method.
Channel design:
The slot design is another key factor in the winding construction. Properly designed slot shape can improve the fill factor of the coil and reduce the resistance of the coil. At the same time, the groove design also needs to consider the heat dissipation effect to ensure that the motor will not be damaged due to overheating during operation.
Oil immersion or curing treatment:
In order to improve the mechanical strength and heat dissipation effect of the windings, the windings of some washing machine motors are oil-immersed or cured. Oil immersion treatment can improve the insulation performance of the coil, prevent insulation breakdown caused by moisture, and also improve the heat dissipation capacity of the winding. The curing process uses a special resin coating to make the windings stronger and more wear-resistant.
Cladding material:
Windings usually require an outer cladding material to protect them from corrosion and mechanical damage from external substances. Commonly used cladding materials include polyamide, polyurethane, etc., and their selection needs to consider factors such as wear resistance, high temperature resistance, and insulation.