How to achieve low noise of portable pmdc planetary gear motor from khedmehcom's blog

Micro gear motor will produce a certain amount of noise when running, the higher the speed, the greater the noise, too much noise will seriously affect the user experience, then how to reduce the noise?

portable pmdc planetary gear motor is composed of rotor winding, armature core, stator, brush, commutator and gear reducer, motor operation process, carbon brush and commutator friction noise, to reduce noise, it is necessary to reduce friction, that is, can reduce noise, Or use the portable pmdc planetary gear motor to reduce noise.

The existence of the brush and commutator will cause a lot of friction, so the noise will be very large, the service life is limited by the material of the brush, the contact resistance of the brush and commutator is also relatively large, the overall resistance of the micro-motor is relatively large, like a large motor, if the speed is too high, it is easy to heat, if the permanent magnet temperature is too high, demagnetization will lead to performance degradation, It has the advantages of convenient speed regulation, low cost and large starting torque, and is usually used in all kinds of electric toys, electronic door locks, adult products, beauty instruments, power tools, small household appliances, smart home and other fields.

The micro gear motor has no brush and commutator device, which greatly reduces the friction service life, is limited to bearings, and the running friction noise will be reduced a lot, but the disadvantage is that the cost is high, the speed regulation is complex, and it is usually used for products with high control requirements and high speed requirements, such as model aircraft, instruments or robots.

Reducer noise reduction attention is divided into: gear accuracy, motor input for plastic gear, helical gear structure

portable pmdc planetary gear motor https://www.dydzmotor.com/PM-DC-Planetary-Gear-Motor-42JXE100K-42ZY68P.html