With the increasing public health awareness, household cleaning appliances have received widespread attention and their popularity has continued to increase. Cleaning appliances has become an indispensable tool for improving the living environment and protecting health. As the main representative of cleaning electrical products, the vacuum cleaner motor occupies a very high position in the family of small household appliances. However, vacuum cleaner motors on the market are mostly series AC motors and permanent magnet DC brushed motors. The life of these two types of motors is limited to the life of carbon brushes. They have short life, large size, large weight, and low efficiency. Good to meet market demand.
The series-excited motor is mainly composed of the front and rear end covers (covers) of the stator rotor and the cooling fan blades. The stator is composed of the stator core and the windings sleeved on the pole shoes. Its function is to generate excitation magnetic flux, conduct magnetism and support the front and rear cover rotors. It is composed of rotor core shaft armature winding and commutator. Its function is to ensure and generate continuous electromagnetic torque. The load is driven by the rotating shaft to convert electrical energy into mechanical energy; the front and rear covers support the armature to connect and fix the stator and rotor into one body. Among them, the front and rear covers of the rotating shaft must have sufficient strength to prevent the armature and the cover from resonating, causing vibration and danger.-Generally, there are rolling or sliding bearings in the front and rear covers.
