Most people rarely come into contact with electric screwdrivers, but they may feel the noise during decoration. Most people can tolerate it for a while, but for people who often use electric screwdrivers, noise is their biggest worry. As a supplier of electric screws, if you think about the problem from the customer's side, you can solve this problem. As for how to solve the noise problem? The following introduces the screwdriver solution for PMDC motor:

Electric screwdrivers for dedicated people on the market generally use single-phase series motors and DC motors with commutators, which cause electromagnetic interference to TVs and radios. To this end, measures such as shielding and symmetrical connection of the exciter windings are adopted. But it will bring some inconveniences:

1. Carbon brushes are usually replaced every 1 to 3 months depending on the frequency of use.

2. The DC motor needs to be cleaned of toner. If not cleaned in time, it may easily cause a short circuit in the motor.

3. Add engine oil in time to protect the motor gears and rotating shafts, reduce wear and extend service life.

In order to solve the troubles caused by the above problems, an electric screwdriver with a brushless motor was developed. The advantages include long life, no noise, and lighter weight. I will not mention them one by one here. How to choose a PMDC brushless motor? Woolen cloth?

1. Make the screwdriver lightweight and use a micro BLDC motor to meet high speed requirements.

2. PMDC brushless motor material selection mainly analyzes the basic properties of permanent magnet materials, including magnetic properties and physical properties. Here we choose NdFeB magnets. You can consult a professional custom motor factory on how to choose.

3. PMDC brushless motor thermal stability evaluation to ensure that the performance of the permanent magnet motor does not change and operates reliably for a long time. Thermal stability refers to the degree of change in magnetic properties of a permanent magnet caused by stable changes in the environment in which it is located.

4. Selection of the number of slots for PMDC brushless motors. When the total number of components is constant, selecting a larger number of slots can reduce the number of components per slot and the number of components per slot, thereby reducing the reactance electromotive force of the commutation components in the slot. Conducive to reversal.

The PMDC motor involved in electric screwdrivers does not produce high temperature or toner during use, has superior performance, longer life, no noise, no interference and other characteristics. As for how to choose a brushless motor? A series of issues include permanent magnet material selection, magnetic pole structure, magnetic field distribution, armature punching, and determination of the number of slots. It is better to choose a professional micro BLDC motor factory to learn more.

BLDC Planetary Gear Motor Suppliers - Dongzheng Motor

If you are looking for planetary gear motor suppliers, please choose Dongzheng Motor, we are a trustworthy planetary geared motors manufacturer.

Dongzheng Motor specializes in the production of geared motors and gearboxes, the main products are PM DC Planetary Gear Motor, Planetary GearBox, Planetary Gear Stepper Motor etc. And widely used in service robots, medical equipment, financial apparatus, intelligent office equipment, solar tracker systems, rehabilitation and health equipment, automatic doors, etc. Our products are exported to the United States, Europe, Israel, Korea, Japan, Taiwan and other countries and regions. Contact us today to discuss your motor requirements and discover how our expertise can drive your business forward.