As one of the must-haves for home appliances, the washing machine can be said to be a masterpiece that liberates human hands. It has now become a very important part of our daily life. The development of washing machines also has a history of a hundred years, and the brands, styles and functions are constantly increasing. As a professional home appliance purchaser, I specially took three days to write this long guide to avoid pits to answer a series of questions about washing machines~
1. The composition of the washing machine?
The components of the washing machine can be divided into water level switch, water inlet valve, motor, timer, box, washing and dehydrating tub, heating device, transmission and control system, and drain.
The washing part includes the inner cylinder, the outer cylinder, etc., and the conveying part is the motor, belt, etc.
Inlet valves, drainage pumps, etc. belong to the inlet and drainage systems.
The control system is the core, consisting of a program controller and a water level switch.
Advantages of washing machine compared to traditional hand washing:
1. Save time and effort
2. More functions
Washing blankets, sheets, and curtains by hand is a difficult task that usually requires both hands and feet. Large-capacity washing machines can be easily handled, and washing machines also have different washing methods for different weights of clothes.
2. Answers to some questions about washing machines
1. Is the drying function of the washing machine necessary? Should I buy an all-in-one washer dryer or a separate set?
A: It depends on your actual needs. For example, in the south, where there are many rainy seasons, it is difficult to dry clothes. Of course, it is necessary to have a drying function. It is also a great convenience for apartments without a balcony.
Both wash-dry and separate sets have their own advantages. The former is more space-saving, but the drying method will be less. The latter takes up more space and has more functions and capacities for drying. In terms of price, the 2-in-1 is cheaper than the separate set.
2. Do you want to buy a baby washing machine for your baby?
A: This is very necessary. Children's body resistance is relatively poor, and they are prone to allergies. When adults go out to work every day, there will be more sweat stains and bacteria on their clothes. For the healthy growth of the baby, it is recommended that the baby's clothes be washed independently, which is more hygienic and clean. Especially now during the epidemic, it is even more important to pay attention.
3. The price range of washing machines is so large, how should I choose?
A: You can choose according to different brands and different configurations. In terms of capacity, the small 3kg and the large 10kg are available, and the price is different. The prices of single-function and multi-function washing machines are also different, and you should choose and buy according to your own needs.
3. Summary of washing machine purchase points
1. Classification of washing machines
When we buy washing machines, whether online or offline, we will see two kinds of washing machines. There is a pulsator type and a drum type. These two types of washing machines have their own characteristics and different structures.
The pulsator is a washing machine that was used more by the older generation when we were young. It is designed with a square flip cover, and the clothes inside cannot be seen. When in use, the water level must be higher than the height of the clothes. The chassis is in the shape of a pulsator. After the power is turned on, the washing mainly depends on the forward and reverse rotation of the pulsator. The pulsator forms a cyclone-like water flow. The wall of the cylinder rubs and washes the clothes, and drives the clothes to rotate, thereby removing the stains from the clothes. .
The pulsator type was first developed in Japan, because the houses in Japan were small at that time, and people needed a machine that saves space but has a cleaning function, so it appeared and was widely used, and it also spread to China.
The pulsator type has the advantages of cheap price and fast washing speed, but the washed clothes are often tangled and difficult to separate. Some wool, silk and other clothes cannot be thrown in for washing.
The front-loading washing machine was passed down from Europe and the United States. It is designed with a side flip cover, and you can see the inner layer of clothes washing through the glass door. When in use, the water mainly plays the role of wetting the clothes, and the water consumption is smaller. It's similar to washing clothes by beating them with a mallet.
After the power is turned on, the drum rotates, and when the clothes reach the top of the drum, they will fall down heavily, and they will continue to circulate. The price of the drum type is uniformly higher than that of the pulsator type. Because the damage to the clothes during washing is relatively small, because there will be no entanglement, and there are more functions, high-temperature washing or drying functions are added.
In terms of service life, most of the drum-type components are metal, which has a longer service life than the pulsator-type plastic. In terms of additional functions, the drum type is also superior to the pulsator type.
Buying suggestion: If the budget is sufficient, it is recommended to choose the drum type, which is more convenient to use and is also a kind of care for clothes. It is easier for the elderly to use the pulsator. If you are renting a house, it is recommended to use the pulsator~
2. Analysis of the motor of the washing machine
The motor of the washing machine can be divided into BLDC brushless motor and DD direct drive motor.
The DD direct drive is set to cancel the belt drive, and the motor and the washing tub can be directly connected, which improves the operation efficiency and stability, and reduces the noise at the same time. However, in the case of high speed, the bearing of the direct drive motor will have a large load, so there is also a risk of damage.
As for the BLDC motor, it is the motor with the best performance in the non-direct drive mode. When energized, the magnetic field near the coil changes, which pushes the rotor to turn. Simply put, it can always maintain the maximum value, with high efficiency and long service life.
Summary: Both of them are widely used now, and the technology of BLDC motors is relatively mature. If you are looking for more stable performance, choose a BLDC motor. In pursuit of better mute effect, just choose DD direct drive motor.
3. Capacity selection of washing machine
It is mainly selected according to the household laundry situation, 3kg, 6kg, 8kg and 10kg are available. The capacity here represents the driving ability of the motor.
I used to share a rental with two people, and I bought a 3kg bag, which is really small. I can only wash my own clothes at a time, which is very troublesome. The one in my hometown is 8kg. It has been used for more than ten years. It can put down two sheets and one or two dolls at a time. When there are many clothes, there is no need to accumulate them into a pile and wash them again.
If it is a large family of three or even four or five members, if the budget allows, it is recommended that you choose a 10kg weight. After all, the bedding also needs to be cleaned.
If you choose an integrated washing and drying machine, although the marked washing capacity is 10kg, the drying capacity is usually only about 7kg.
If you live alone, or buy clothes for your baby alone, then 3kg-6kg can meet your needs, after all, you don't have much clothes.
4. Washing ratio of washing machine
The washing ratio is a comparison between the washing rate of the tested washing machine and the washing rate of a standard agitator washing machine.
The qualified value of the national standard is 0.7, and if it can reach 0.91, it can be a first-class energy efficiency. The washing ratio of pulsator washing machines on the market is generally in the range of 0.8-0.9, and the washing ratio of drum washing machines is in the range of 1.03-1.25. Usually, the higher the wash ratio, the better the washing effect of clothes.
5. Antibacterial function and technology of washing machine
There are still many mainstream methods for the sterilization and antibacterial function of washing machines. Such as high temperature sterilization, silver ion sterilization, ozone sterilization and so on.
High temperature sterilization is actually well understood. Under high temperature, bacteria will be killed. However, the function of high temperature sterilization also has certain defects, because it is not suitable for all clothes. Especially those that are easy to fade, wool or silk materials.
Silver ion sterilization can be divided into ordinary silver ions, nano silver ions and so on.
Ordinary silver ions: combine with protease in bacteria to inactivate it.
Photodynamic silver ions: With the addition of ultraviolet and blue light settings, it can also kill more harmful bacteria such as Candida albicans.
Nano silver ions: Nano materials or antibacterial crystals will be added to the surface of the inner and outer barrel materials.
Ozone sterilization is also more commonly used. Put ozone into the inner cylinder to fully oxidize it to achieve the effect of removing odor, mites and bacteria.
When we choose a washing machine, we must have a sterilization function, and it is more comfortable to wear.
6. Energy consumption and frequency conversion
All electrical appliances have energy efficiency grades, and there are five grades in my country's standard. The higher the level, the more energy-efficient it is.
As for the fixed frequency and frequency conversion, it is mainly the speed of the washing machine motor.
Fixed frequency is to use a fixed speed of work.
The frequency conversion washing machine has less noise, and it will be adjusted according to different programs, making the noise even lower.
7. Selection of drainage method
The washing machine has two drainage methods, upper drainage and lower drainage.
The drain outlet of the upper drain is above the washing machine, and the waste water is distributed upward.
Drainage can be drained by its own gravity.
The lower drainage is drained by gravity, although it does not consume electricity, but if there is a bending situation, the water will not be drained out, and if the backlog is long, bacteria will also be produced. Therefore, the way of upper drainage is our better choice
