Dishwasher Manufacturers Should Choose DC Or AC Water Pump, What Is The Future Trend

According to data monitored by AVC in June, the retail sales of dishwasher market in June 2021 was 940 million yuan, a year-on-year increase of 27.3%. The offline market retail sales of dishwashers was 220 million yuan, a year-on-year increase of 12.9%. From this set of data, we can see that dishwashers have gradually become popular in the majority of households and become one of the indispensable household appliances in the family.

The earliest dishwasher in the world was invented by a female inventor, Josephine Cochrane in Shelbyville, Illinois, and was granted patent number 355139 on December 28, 1886. The dishwasher was displayed at the Chicago World's Fair in 1893, and later Josephine Cochrane founded his own dishwasher company.

The appearance of the dishwasher has greatly reduced the burden of people working in the kitchen, completely freed their hands, and reduced the daily family friction, and increased the atmosphere of family harmony. Now whether in the restaurant or the family, it makes washing dishes more convenient And efficient, it brings cleanliness, hygiene and ease to people.

Such a good product, do you know how it works?

Preparation for the first round of cleaning.

When the dishwasher is in operation, drain the water first to remove the water stains from the last washing to avoid secondary pollution. Then began the process of injecting water, and after the water was poured to a certain level, the first round of cleaning work began. The spray nozzle inside the dishwasher first wet the dishes in the dishwasher with soft water droplets to pave the way for the subsequent cleaning steps. The cleaning process is a link from shallow to deep. After the dishes are wet, the upper spray port will simply rinse the dishes to soften the stubborn oil stains. This is also the last step of the cleaning preparation process. After re-draining and filling water, the dishwasher will start the second round of the real cleaning process.

The second round focuses on cleaning.

After completing the first round of cleaning preparations, the dishes with lighter oil stains are almost clean, while those with heavier oil stains must be cleaned by the second round of high-intensity cleaning.

After cleaning around, basically 360° around the dishes can be cleaned in place. For stubborn greasy dirt, the internal spray port will use high water pressure to remove the stains on the surface of the dishes as much as possible. This step is often the most critical step and will be repeatedly cleaned for more than ten minutes. It can be seen that after the high water pressure washing, the most oily dishes have gradually been cleaned up. After the high temperature washing, the high temperature sterilization and oil removal process is about half an hour. Similarly, the timing and operation of these steps will also change.

The final cleaning of the third round.

After the high-temperature oil stains, a new round of washing will be carried out to remove the liquefied oil stains. Basically, after this step is completed, there will be no attached oil stains and food residues on the surface of the dishes.

Through the integrated high temperature and disinfection function, the dishes inside the dishwasher are cleaned. At this time, both in appearance and details, the dishes have become clean. Finally, after disinfection, there is a rinse and drain, and then it will enter the drying process. Basically, even stubborn stains can be cleaned.

The above is the whole process of the dishwasher.

I don’t know if you have noticed that all these steps are inseparable from the spray nozzle to clean the dishes. The reason why the water sprayed from the spray nozzle can rinse the dishes is because the dishwasher is installed in the dishwasher. The machine water pump, the high-pressure washing force generated by the water pump washes the oil and food residues on the tableware to achieve the purpose of cleaning the tableware.

At present, there are two types of dishwasher water pumps: one is a miniature DC pump, and the other is a miniature AC pump. Which pump is better?

Micro AC water pump is a small water pump whose power source is AC. The 220V mains power used is commutation changed by the 50HZ frequency of the mains power, and its speed is very low. There are no electronic components in the AC water pump, which can withstand high temperatures.

Advantages and disadvantages of micro AC pumps:

Advantages: The price is cheap, and there are more manufacturers.

Disadvantages: large size, high noise, high weight, inconvenient to carry, high protection level requirements, improper use may cause electric shock.

Micro DC water pump refers to a water pump that uses a DC power supply to drive a brushless motor. Using 4.5V～24V DC power supply, the miniature DC water pump adopts electronic component commutation, without carbon brush commutation, adopts high-performance wear-resistant ceramic shaft and ceramic bushing, and the bushing is integrated with the magnet through injection molding. Wear and tear, so the life of the brushless DC magnetic water pump is greatly enhanced.

Advantages and disadvantages of miniature DC pumps:

Advantages: long life, low noise up to 35dB or less, high precision, good shock resistance.

Disadvantages: high price.

At present, most dishwashers use AC water pumps, but as people's living standards are provided, the quality requirements for household appliances are getting higher and higher. DC water pumps will gradually replace AC water pumps, because the shortcomings of AC water pumps are people's quality of life. Request for improvement.