Vacuum cleaner program development and design

2021-01-05 12:41:34 hongling

Cleaning tools such as brooms, brooms, and mops are the earliest traditional tools for household cleaning, but these traditional methods have never met the goal of people's convenient life. In order to meet people's needs, more intelligent and more convenient life products have appeared, so modern Smart products such as vacuum cleaners and sweeping robots have appeared on the market. Since ancient times, cleaning tools have a history of more than 4,000 years. The invention of the broom originated in China and played a decisive role in the cleanliness and healthy life of the Chinese people. The earliest vacuum cleaner was invented in 1860 and has a history of more than 150 years. The vacuum cleaner at that time was just a carpet cleaner, not a vacuum cleaner now. People are not very used to using it, and the usage rate is very low. This earliest product laid the foundation After the development of vacuum cleaners.


When buying a vacuum cleaner, you should know what it does and what it can do. The vacuum cleaner is for vacuuming, so there is no doubt about it. It is good at cleaning up the dust from the corners. But vacuum cleaners are still more suitable for cleaning floating dust. For wet surfaces or dirt that has adhered to the surface of objects, the effect of vacuum cleaners is not as good as mops and wipes (some export products are wet and dry, and their power and air volume are quite large. ). A vacuum cleaner with a roller brush is better for cleaning carpet dust.


1. The technical principle of the vacuum cleaner solution

The motor of the vacuum cleaner rotates at a high speed and sucks in air from the suction port to generate a certain vacuum in the dust box. The dust enters the dust filter bag in the dust box through the floor brush, nozzle, handle, hose, and main suction pipe. The dust is left in the dust filter bag and filtered The air then enters the motor through a layer of filter. This layer of filter is a protective barrier to prevent the dust bag from rupturing and dust sucking into the motor. The air entering the motor flows out through the motor. Due to the continuous wear of the carbon brush during the operation of the motor, it flows out of the vacuum cleaner. A filter was added before.


The finer the filter material, the cleaner the air can be filtered, but the poorer the air permeability, which affects the air volume sucked by the motor and reduces the efficiency of the vacuum cleaner. But for users, comfort and cleanliness are the main thing. Its air permeability is low, so it is made into a wave shape to increase the air permeability area. Some of this filter material can be cleaned repeatedly. Any filter material has a "life", that is, the pores of the filter material have been blocked by small particles of dust after long-term use.


Vacuum cleaners are mainly composed of three parts: dust collection, dust collection, and dust filtration, generally including series commutator motors, centrifugal fans, dust filters (bags) and dust collection accessories. The power of a general vacuum cleaner is 400-1000W or higher, and the power of a portable vacuum cleaner is generally 250W or less. The vacuum cleaner can remove dust mainly because its "head" is equipped with an electric exhaust fan. There is a wind impeller on the shaft of the exhaust fan. After power on, the exhaust machine will generate high suction and pressure at a speed of 500 laps per second. Under the action of the suction and pressure, the air is discharged at high speed, and the air in the dust suction part at the front of the fan is constantly The air in the fan is supplemented to cause an instantaneous vacuum in the vacuum cleaner, which forms a negative pressure difference with the outside atmospheric pressure. Under the action of this pressure difference, dusty air is sucked in. Dust and other debris enter the dust filter bag through the carpet or floor brush, long pipe, elbow, hose, and hose connector in turn. The dust and other debris are trapped in the dust filter bag. After the air is purified by the filter, it is discharged from the rear of the body.

Vacuum cleaner program development and design

Second, the important performance indicators of the vacuum cleaner

Generally speaking, no matter at home or abroad, vacuum cleaners have an important reference index, power. But in terms of power alone, it has no more special significance besides representing power consumption. But for a vacuum cleaner, the meaning of power is an important parameter representing the performance of a machine. It can be said that the power of the vacuum cleaner determines the performance of the vacuum cleaner. The higher the power of the vacuum cleaner, the stronger the suction power. But there are exceptions, that is, the machine is not well-sealed. In order to reduce the temperature rise, deliberately venting, low-efficiency motors may also cause high power and low suction. The really important indicators for vacuum cleaners should be suction power, vacuum, air volume (air flow), and noise.


Vacuum: an important indicator of suction. This index also has a lot to do with power. Generally, the higher the power, the higher the index should be. If 1000W is the standard, the value should be around 20kPa.


Air volume: The air flow through the suction port of the vacuum cleaner per unit time. An index that is as important as vacuum is also related to power. Taking 1000W as the standard, the value should be around 18L/s.


Noise: For vacuum cleaners around 1000W, the noise is generally around 80dB. The lowest noise is the rechargeable vacuum cleaner, the high-end only has a noise of 40dB, but the power is only a poor 350W.


Temperature: For a 1000W vacuum cleaner, the temperature of the air outlet is generally above 40°C after being operated for a long time. Similarly, the lower the power, the lower the temperature rise. Now the vacuum cleaners produced by major factories have passed the CCC safety certification, and there is a temperature rise test in the certification. Therefore, despite the hot spots, high-power vacuum cleaners also comply with safety regulations.

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3. Types of vacuum cleaner solutions

Cleaning tools such as brooms, brooms, and mops are the earliest traditional tools for household cleaning, but these traditional methods have never met the goal of people's convenient life. In order to meet people's needs, more intelligent and more convenient life products have appeared, so modern Smart products such as vacuum cleaners and sweeping robots have appeared on the market. Since ancient times, cleaning tools have a history of more than 4,000 years. The invention of the broom originated in China and played a decisive role in the cleanliness and healthy life of the Chinese people. The earliest vacuum cleaner was invented in 1860 and has a history of more than 150 years. The vacuum cleaner at that time was just a carpet cleaner, not a vacuum cleaner now. People are not very used to using it, and the usage rate is very low. This earliest product laid the foundation After the development of vacuum cleaners.


Compared with a manual tool like a broom, which sweeps dust all over the sky, the birth of a vacuum cleaner can not only clean and remove dust, but also absorb a variety of harmful substances and bacteria in the air. It is a healthier and more detailed cleaning tool. With the improvement of people's quality of life, vacuum cleaners are gradually replacing brooms as the future household cleaning tool, which is also the future trend of just-needed appliances. In addition to large outdoor vacuum cleaners, household and indoor vacuum cleaner cleaning appliances are also divided into many types.


1. Intelligent sweeping robot


Automatically clean the dust on the floor, automatically clean up hair and debris, and automatically return to charge after the cleaning task is completed. The core technology of the smart vacuum cleaner is the chip and the software inside. High-end vacuum cleaners can automatically clean and charge. The advantages are low noise, small size, and easy access to places that traditional vacuum cleaners cannot reach.


2. Central dust collection system


High-end vacuum cleaner, it is the place where the vacuuming host is placed outside the main living area, such as: underground equipment floor, garage, cleaning room, etc., the vacuum pipe is embedded in the wall, leaving only small and beautiful suction on the wall Dust socket, when you need to clean up, you only need to insert a hose into the dust suction port. At this time, the system will automatically start the host switch, all large and small dust, paper scraps, cigarette butts, harmful microorganisms, and even bad smells such as smoke in the guest room. It is transported to the central collection station through a tightly sealed pipeline. Anyone can perform full or partial cleaning at any time, ensuring the cleanest indoor environment. Its cleaning capacity is 5 times that of general vacuum cleaners, and the length of the hose can be arbitrarily selected. This type of system is already a must in European and American countries, and some high-end buildings in China have adopted this advanced technology.


3. Water filter vacuum cleaner


The water filter vacuum cleaner uses water as a filter medium to dissolve and lock in the water when various microorganisms such as dust, garbage and bacteria are sucked through the water tank by strong suction. The dust is wetted by water to avoid the overflow of fine dust during vacuuming; the gas is inhaled through water purification to dissolve allergens, bacteria and other microorganisms. Then, it is further filtered through HEPA, high-efficiency filter cotton, etc., through these three purification systems to ensure the perfect and efficient water filtration. The water filtration technology was originally developed for people who are prone to allergies. It uses water to dissolve and lock dust, particles, allergens, pollen, dust mites, and small microbes to avoid allergies caused by unclean air during vacuuming.


4. Portable mini vacuum cleaner


The portable mini vacuum cleaner is light and handy, and has a convenient carrying design. Just pick it up and press it with your hand to vacuum easily. The sling design can carry it on the waist for operation. Use a large suction head to suck anything on the ground (except water), use a wide-head suction head to suck items with gaps (the wide-head vacuum head has a hair brush on the head to clean the dust in the gap), use a hose When vacuuming, you can carry it on your back, not only for sofas, curtains, but also for ceilings, computer keyboards, bed surfaces and various household appliances. Equipped with a small square brush that can be turned, it can be used to dust the computer keyboard, clean up a small area of debris and vacuum pets, clean up the dust hidden in every blind corner and narrow gap, improve cleaning efficiency and make it more convenient to use.


5. Mite removal vacuum cleaner


As the name suggests, the main function of the mite-removing vacuum cleaner is to remove, kill and kill mites. Medical-grade UV lamps can sterilize and remove mites from beds, sofas, bath towels, baby crawling blankets, plush toys, and other household items. The 400W suction power can completely eradicate the living environment of mites and suck away the infectious agents of mites.

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Fourth, the brand of vacuum cleaner

More than 70% of vacuum cleaners in the world are produced in China. Domestically sold brands, such as Philips, Electrolux, Panasonic, Sanyo, LG, Haier, Midea, etc., are all domestically produced products, and foreign brands such as HOOVER ROYAL, EUROPRO, WAL-MART, etc. The products are all OEM produced in China. More than 70% of domestically produced vacuum cleaners are for export, which also shows that domestic manufacturers can make good products, but the best products are not sold domestically. Most of them are sold to Japan, Europe and the United States and other countries. The production volume of domestic manufacturers is very large, with the largest annual output reaching 1 million units. Therefore, when consumers buy household vacuum cleaners, they should not only value the brand, but also consider the specific technology, functions, parameters, and indicators of the product, and make multiple comparisons.


Five, the purchase suggestion of vacuum cleaner brand

The connection of each part of the vacuum cleaner should be tight. If it is a plastic simplified version, consumers should check whether there are cracks in the simplified version and whether the joint between the cylinders is tight; if it is a metal simplified version, first check whether the simplified version is deformed and whether the simplified version is between seal. After checking the surface, power on the vacuum cleaner and you will hear the sound of suction. At this time, you can approach the joint with your hand. If you can't feel the air flow, it means that the sealing performance is better. Otherwise, it will not only waste electricity, but also cause secondary pollution.


High-performance vacuum cleaners are indispensable for strong enough suction power. Various suction nozzles and special-purpose accessories are indispensable in ensuring that the vacuum cleaner can effectively vacuum, which can improve efficiency and enhance the cleaning effect. At the same time, consumers should pay attention to the filter system of the vacuum cleaner. Generally, the higher the filter density, the better the filter effect. Many consumers buy vacuum cleaners to use them at home. They should pay special attention to the performance of the motor. You can turn on the power to see the smooth running of the machine and whether there are noises such as squeal or friction to avoid noise and safety hazards.


Many vacuum cleaners have added a thermostat for safety to ensure that the vacuum cleaner will not restart even if it is connected to the power supply after an overheating action, but overheating protection is not a panacea. To avoid damaging the vacuum cleaner, you must clean the filter material in time and don’t forget to turn it off. . In addition, consumers must read the manual carefully before using the vacuum cleaner to avoid damage to the vacuum cleaner and endangering personal safety due to improper use.

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6. Filter structure of vacuum cleaner

Many vacuum cleaners now respect HEPA filtration. Indeed, HEPA filtration efficiency is indeed relatively high, but there is a problem that needs to be paid attention to: high filtration efficiency and fast clogging. HEPA needs to be cleaned or replaced frequently. The HEPA in the vacuum cleaner is actually a paper-based multi-layer filtration system. The imported HEPA has a nominal filtration efficiency of over 99.8%, while the domestically produced HEPA can generally only achieve over 90-95%. Domestic manufacturers also use HEPA imports, but consumers should not blindly believe in imports. Many imported HEPA products are also shoddy products. The high filtration efficiency also means that the PA blocks quickly, especially the absorption of fine dust. Dust, although the HEPA can be reused after being blocked by washing and drying, the washed HEPA is still clogged by dust due to many paper pores or some pores have been destroyed due to washing, and its air intake capacity decreases quickly, and it is generally repeated After 10 times of use, it will basically have no effect. If such HEPA is used for a long time, the efficiency of the whole vacuum cleaner will be seriously reduced. And damage the motor.


Dust bag: The most traditional filter material, distributed quality and paper quality. Of course, paper quality is disposable. The cloth quality can be used repeatedly, but it needs to be cleaned. It is better to use SMS cloth. The filter efficiency of the dust bag is medium level. Generally, it can reach a level of 70% to 80%.


Filter: Some low-power vacuum cleaners usually use a filter structure, which is also the material with the lowest filtration efficiency, only about 60%, but it is the easiest to clean.


Cyclone structure: The current mainstream structure of household vacuum cleaners can rely on centrifugal force to throw dust into the dust box and reduce the burden of the filter. It has a certain effect, but it is only an auxiliary function. The filter mainly depends on the filter.


One last thing to note: No matter what kind of filter material the vacuum cleaner uses, the finer the dust, the easier it is to block the filter equipment. So sometimes, if there is not much dust in the dust bag, the protector works. Don't be surprised, it is a normal phenomenon. At this time, it needs to be cleaned up (beating, washing).


Seven, the roller brush of the vacuum cleaner

The roller brush function of the vacuum cleaner is mainly to clean carpets and woolen textile articles. Using a hard nylon roller brush may damage the floor. If you have a lifting plate, you can lift the roller brush to avoid damaging the floor. If it is a soft roller brush, it should be good to clean the floor).


There are two types of roller brushes: electric and wind. The noise of the wind brush is greater than that of the electric brush. If the wind brush sucks in foreign matter, the wind wheel may be damaged or stuck. If the powerful electric floor brush is subjected to too much pressure or resistance and the roller brush stops, either the roller brush is broken or the belt is broken. The electric floor brush of a rechargeable or low-power vacuum cleaner does not have this problem, but it is easy to stop when encountering resistance. At present, there are electric floor brushes with overload protection, that is, when the resistance is too large, the indicator light will light up and cut off the current of the floor brush.