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Evolution of Washer Motor I

Update:09-10-2019
Summary:

With so many brand washing machines, what is the differ […]

With so many brand washing machines, what is the difference between Washing Machine Motor ?

It is very important to know the choice of washer motor. At present, the washer motor on the market is mainly divided into two categories: DD frequency conversion direct drive motor by LG and Haier, and BLDC washer motor by Siemens and other brands. So what is the difference between these two motors?

Fixed frequency motor:

Powerful, but noisy, generally used in relatively low-end models (hundreds to two thousand pulsators).

Inverter motor:

There are two common types: permanent magnet synchronous direct drive motor (DDM) and permanent magnet brushless motor (BLDC). The common advantage of both is that they fully meet the mute needs.

History of Frequency conversion

At the beginning, when the washing machine was washing clothes, "not clean" is normal. After learning the reason, it was learned that the frequency was not fixed due to lack of experience (that is, the frequency could not be changed during work), and the speed could not be adjusted according to the amount of clothing. It is often complained that it is difficult to really clean, plus the clothes can not be shaken at the beginning and the final deceleration, so each time they are washed, they will be tangled.

After the avatar variable frequency motor is instructed, it can easily adjust the washing and dehydrating speed, which not only satisfies the cleaning requirements of most clothes, but also reduces the entanglement damage to the clothes.

Frequent failures become the most difficult problem

However, solving the "not clean" is only a small step in the evolution of the washer motor, and the bigger problem is still behind. The carbon brush in the motor generates sparks and toner during operation, which not only interferes with the remote control radio equipment, but also requires regular cleaning and maintenance, and generates a large amount of heat, which is prone to failure.