For the two categories, the most direct way to judge is to look at the way to open the cover. The one that opens the cover from the top is the wave wheel washing machine, and the one that opens the cover from the front is the drum type washing machine. < / P > < p > the two washing machines are quite different in principle. The drum type washing machine is designed by imitating the principle of washing rod hammer striking clothes. Driven by the motor, the internal drum of the washing machine rotates. Under the action of the partition in the cylinder, the clothes are continuously lifted and dropped in the drum, and then lifted and dropped again. This repeated operation can realize the decontamination and cleaning of clothes under the action of detergent and water flow. < / P > < p > there is a disc wave wheel at the bottom of the wave wheel washing machine. When working, the wave wheel makes forward and reverse cross rotation to drive the water flow in the cylinder and the clothes to turn up and down continuously. In this way, friction occurs between clothes, clothes themselves and the barrel wall. Clothes float in the water for friction, and laundry decontamination is realized under the action of detergent and water flow clean. < / P > < p > in contrast, the clothes washed by the wave wheel washing machine are cleaner. However, some drum washing machines can heat the water to enhance the solubility and decontamination ability of detergent, and also improve the washing ability of clothes. However, for some clothes that cannot be washed with hot water, this function is not very useful. Generally speaking, the same price drum washing machine can not catch up with the cleanliness of the wave wheel washing machine. < / P > < p > because of the different washing principles, the wave wheel washing machine is easier to wear clothes than the drum type washing machine. The wave wheel washing machine cleans clothes by the friction of clothes, barrel wall and water flow, and the clothes are easy to entangle. The drum type washing machine can wash wool, down, silk and other clothes with little wear and tear. < / P > < p > wave wheel washing machine can achieve the cleaning effect through the scouring force driven by the water flow, so the water level must be higher than the clothes, which costs more water. The drum washing machine simulates the action of “beating clothes with sticks” to clean clothes. Therefore, only a small amount of water is needed to clean clothes. Generally speaking, the water consumption of drum washing machine is about 1 / 3-1 / 2 of that of wave wheel washing machine. < / P > < p > the power of drum washing machines is generally about 200 W, and that of wave wheel washing machines is about 400 W. however, drum washing machines with complete functions consume electricity, some of them will heat water, and their washing time is different. The drum washing machine takes about 90 minutes to wash a wave of clothes, while the wave wheel washing machine takes about 45 minutes to wash a wave of clothes. In comparison, the wave wheel washing machine saves more power and time. < / P > < p > a wave wheel washer does more than a drum washer. The ratio of inner cylinder volume to washing capacity of wave wheel washing machine is about 9:1 and that of drum is 7:1. < p > < p > therefore, compared with the wave wheel washing machine, the drum washing machine should not put too much clothes, otherwise the washing degree will be affected. Moreover, in the cleaning process, the wave wheel washing machine can open the top cover at any time to add and reduce clothes, and the drum type washing machine can not open the clothes at will. < / P > < p > the drum washing machine is a side door type, which does not occupy the upper space. It can be installed by embedding. For example, if it is placed under the washing table, the space of the table top has been fully utilized, but it cannot move freely. < / P > < p > the area of wave wheel washing machine is small, and it adopts the form of upper door opening, which can exist in toilet, balcony, aisle and other positions. Light weight, easy to move, convenient for regular cleaning. < / P > < p > the upper door of the wave wheel washing machine is open, so you don’t have to bend down when putting clothes. If there are old people who are inconvenient for their legs and feet, the drum washing machine is not very convenient for them to use. And the wave wheel washing machine can use artificial water injection, in case the faucet at home is broken, the drum washing machine can’t work. < / P > < p > whether it is a wave wheel washing machine or a drum washing machine, there are two kinds of motors: variable frequency and fixed frequency. Like air conditioning, the frequency conversion washing machine can save more electricity for a long time. The most important thing is that the speed can be adjusted according to different procedures. It has less damage to different kinds of clothes, and has better running noise and ride comfort. Fixed frequency washing machine is not worthless, it is more practical and durable, low failure rate, broken repair is also very convenient. < p > < p > generally speaking, the wave wheel washing machine is suitable for the elderly, rental parties and cost-effective people, because it is convenient to put in clothes, cheap price, durable leather and easy to move. Drum washing machine is suitable for young families with high quality. It has the advantages of low noise, beautiful and fashionable appearance, less space occupation and less wear on clothes of different materials. < / P > < p > no matter what kind of washing machine you choose, you should do a good job in daily cleaning and maintenance to prolong the service life. It is better to open the laundry cover after washing clothes every time, and then close it after ventilation and drying to avoid bacteria breeding. Do a good job of disinfection and cleaning regularly to avoid secondary pollution of clothes, causing skin allergy and other uncomfortable symptoms. Global Tech