Guide to the selection and purchase of washing machine motors

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In daily family life, the washing machine is the liberation of the hands, ensure clean clothes, “The hero.”. The motor as the core component of the washing machine, like the human heart, directly affects the performance of the washing machine and the use of experience. At present on the market mainstream DD Direct Drive Motor and BLDC belt motor, how to choose? Here is a detailed analysis for everyone.

1.Transmission structure

The BLDC motor and the inner cylinder are connected by a belt, and the power is transmitted to the inner cylinder with a specific transmission ratio. This structure is like an old bicycle through the chain drive rear wheel rotation, there is a certain cushioning effect. When the motor starts and runs, the belt can absorb part of the impact force, making the inner cylinder rotate more smoothly and reducing vibration and noise. However, the belt is a fragile part, like a bicycle chain will wear out with time. In general, a belt may need to be replaced after 5-8 years of use. And the belt in the transmission process will have a certain amount of energy loss, just as the chain drive will have friction to consume part of the strength.

The DD Direct Drive motor is directly connected with the inner cylinder to achieve a 1:1 transmission ratio. This design makes power transmission more direct, efficient, and faster response. When the washing machine needs to quickly start or adjust the speed, DD direct-drive motor can quickly respond. But because there is no buffer belt, DD direct-drive motor to withstand greater load and impact, just like the porter directly to bear the weight of the motor itself quality and manufacturing process requirements are higher.

2.Performance Performance

Noise: BLDC motor running at low speed, less noise, will not disturb the quiet of the family. But when the speed increased to more than 1200 rpm, the friction between the belt and the motor shaft will produce a certain noise. DD direct-drive motor can also keep relatively quiet during high-speed dehydration due to no belt friction. If you are sensitive to noise, or if the washing machine is located near your bedroom, a DD direct drive motor may be more suitable for you.

Washing accuracy: DD direct-drive motor in washing accuracy performance is outstanding. For gentle care of clothing, especially suitable for washing silk, wool and other delicate fabrics. LG’s direct-drive motor can also simulate a variety of hand-washing action, so that washing more tailored to clothing needs. BLDC motor can also complete the basic washing function, but in the precise control is slightly inferior. However, its high speed in the washing power has certain advantages, can quickly remove stubborn stains on clothing. If you wash dirty clothes regularly, the BLDC motor may be more practical.

3.Life and maintenance cost

Life comparison: BLDC motor motor body design mature, stable structure, service life of up to 15 years or so. However, the belt as a wearing parts, 5-8 years after the use may need to be replaced. Due to the compact structure of DD Direct Drive motor, the shaft and bearing are under great pressure, and the problems such as wear and tear may occur after long-term use, which affects its service life. Although reliability has improved with technological advances, overall life may be slightly shorter than for BLDC motors.

Maintenance costs: the replacement of BLDC motor belt cost is relatively low, and the repair process is relatively simple, ordinary maintenance personnel can complete. The maintenance of DD Direct Drive motor needs professional technology and equipment, and the maintenance cost is high.

4.Suggestions for purchase

In the choice of washing machine motor, according to their actual needs and budget to decide. If you’re sensitive to noise, regularly wash delicate fabrics, and have a budget, then a DD direct-drive motor washing machine is for you; if you’re cost-effective, regularly wash dirtier clothes, and have a limited budget, then a DD direct-drive motor washing machine is for you, then BLDC motor washing machine may be more in line with your needs.

In short, there is no perfect motor, only the most suitable motor for you. Hopefully, this guide will help you make informed decisions when shopping for a washing machine that will make the job easier and more enjoyable.