In 1901, British civil engineer Booth went to the Empire Concert Hall in Leicester Square, London, to watch a demonstration of an American car dust collector. This kind of vacuum cleaner uses compressed air to blow dust into a container. Booth thinks this method is not very clever because a lot of dust fails to be blown into the container. Later, he did the opposite and used the vacuuming method. Booth made a very simple experiment: covered a handkerchief on the armrest of a chair, and sucked it off with his mouth. As a result, the handkerchief was attached with a layer of vacuum. dust. At that time, he made a vacuum cleaner, using a powerful electric pump to suck air into the hose and filter the dust through a cloth bag. In August 1901, Booth obtained the patent and established a vacuum cleaner company, but did not sell vacuum cleaners. He installed a vacuum pump driven by a gasoline engine on a horse-drawn carriage and provided door-to-door service. He stretched three or four long hoses from the window into the room to vacuum, and all the company employees wore work clothes. This was the predecessor of the later vacuum cleaner.

In 1902, Booth's service company was called to Westminster Abbey to clean the carpets used for the coronation of Edward VII. Since then, business has been booming. In 1906, Booth made a small household vacuum cleaner. Although it was called "small", the vacuum cleaner weighed 88 pounds (1 pound = 0.4536 kilograms) and was too bulky to be popularized.

In 1907, Spangula, an inventor in Ohio, USA, made a lightweight vacuum cleaner. He was working as a manager in a store at the time to relieve his son from the burden of cleaning carpets. He made a vacuum cleaner with The fan creates a vacuum that pulls dust into the machine and blows it into pockets. Since he was unable to produce and sell it himself, he transferred the patent to the fur manufacturer Hoover in 1908. At that time, Hoover began to manufacture a wheeled "O" type vacuum cleaner, which sold very well. This earliest household vacuum cleaner had a reasonable design, and it has not changed much in principle since its development.

The earliest vacuum cleaners designed were upright. Wenler in Stockholm, Sweden in 1913. G?ring invented the horizontal canister vacuum cleaner

Classification of vacuum cleaners

Currently, civilian vacuum cleaners are mainly divided into the following categories:

1. Horizontal vacuum cleaners ( Canister)

A common type of vacuum cleaner in the Asian and European markets, accounting for more than 80% of the overall market. It is characterized by compact appearance and convenient storage. Horizontal vacuum cleaners are also divided into "dust box vacuum cleaners" and "dust bag vacuum cleaners"

2. Upright vacuum cleaners (Upright)

It is more common in the American market and is suitable for large areas Carpet cleaning

3. Handheld vacuum cleaner (Handy)

Small in size, very easy to carry and use. It is mainly used for cleaning in the car and has good effects on keyboards, electrical appliances, etc. . The disadvantage is that the power is small and the suction power is not strong enough.

4. Bucket vacuum cleaner (Pot)

Commercial vacuum cleaners are mostly used by cleaning companies, hotels, and office buildings. They are characterized by their large capacity and ability to absorb water.

5. Stick vacuum cleaners (Stick)

In recent years, the number of stick vacuum cleaners has gradually increased, and most of them are rechargeable. They are characterized by their small size and easy use.

6. Robot vacuum cleaner (Robot)

High-end vacuum cleaner can automatically clean and charge, but the cleaning effect is limited, so it is suitable for an already clean home environment.

7. Central vacuum system

High-end vacuum cleaner, which places the main vacuum cleaner in places outside the main living area, such as underground equipment floors, garages, cleaning rooms, etc. , embed the vacuum pipe into the wall, leaving only a small and beautiful vacuum socket on the wall. When you need to clean, you only need to insert a hose into the vacuum port. At this time, the system automatically starts the host switch and removes all large and small dust. , paper scraps, cigarette butts, harmful microorganisms, and even bad odors such as cigarette smoke in the guest rooms are transmitted to the central collection station through strictly sealed pipes. Full or partial cleaning can be carried out by anyone at any time, ensuring the cleanest indoor environment. Its cleaning capacity is five times that of ordinary vacuum cleaners, and the length of the hose can be optional. This type of system has become a must-have system in European and American countries, and some high-end properties in China have adopted this advanced technology.

Vacuum cleaner filtration methods

1 Dust bag filtration: Filters out 99.97% of particles with sizes as low as 0.3 microns. Over time, the vacuum degree of a vacuum cleaner using a dust bag will decrease. will decrease, causing the suction power to become smaller, and as a user it is impossible to replace the dust bag after every use, so microorganisms such as mites will continue to breed in the dust bag, and these mites will be harmful to the dust bag when the dust bag is cleaned. The surrounding environment produces secondary pollution. The dust bag is used as the filter feature, which is easy to clean and does not need to be cleaned every day. It is suitable for factories, hotels, car beauty, cleaning industries, etc. The disadvantage is that over time, the filtering capacity of the dust bag decreases, the pores of the fabric will open, the filtering capacity is seriously reduced, and it needs to be replaced.

2 Water filtration: Using water as the filter medium, most of the dust and microorganisms will be dissolved and locked in the water when passing through, and the remaining will be further filtered after passing through the filter, so that the exhaust gas when the vacuum cleaner is discharged The air may be cleaner than when you breathe it in.

The filtration effect of water filter vacuum cleaners is undoubted, but because it uses water as the filter medium, it puts forward higher requirements for the design of the product itself and the waterproof protection of the motor. This is why water filter vacuum cleaners are currently on the market. The quality is uneven and the price is an important reason. , Features: The suction is more significant, and the discharged gas is purified by water. Disadvantages: Water needs to be drained every time it is used. After use, it must be cleaned. If not cleaned thoroughly, it will easily become moldy, smelly, and rusty. Suitable for: hotels, home offices, etc.

New technology of vacuum cleaners

At present, with the continuous improvement of living standards, people have higher and higher requirements for home cleaning. The development of new technologies and functions of vacuum cleaners is also getting faster and faster, and more and more new technologies and functions are being applied to vacuum cleaner products.

1. Steam brush head

Add a small amount of water to the brush head of the vacuum cleaner, heat it through the heater in the brush head to generate steam, and use the high temperature of the steam to Sterilization makes it easier to remove stubborn stains such as oil stains and coffee stains, and the brush head comes with a rag that can be sucked and wiped to complete the cleaning process in one go.

This technology was first invented in South Korea. Currently, in the Chinese market, LG and Midea have launched steam vacuum cleaners.

2. Cyclone dust collection

Improve the structure of the dust collection box to make the air form a cyclone inside the vacuum cleaner to better separate dust and air to ensure that the suction power of the vacuum cleaner is more durable.

The leader of this technology is the British brand Dyson. Currently, domestic vacuum cleaners that use this as a selling point include King'nQueen brand vacuum cleaners and Ecovacs.

3. Vibrating brush head

In order to meet the cleaning needs of vacuum cleaners for sofas, beddings, curtains, etc., developers designed and developed a vibrating brush head, which uses a plastic plate inside the brush head to High-frequency vibrations up to 3,600 times per minute can beat bedding, sofas, etc. to suck out deep dust and remove bacteria and mites.

Daily care and maintenance of vacuum cleaners

1. Clean the debris in the bucket and various vacuum accessories in a timely manner. Clean the dust bag after each work and check for holes or leaks. Air, and use detergent and warm water to thoroughly clean the dust grid and dust bag, and blow dry. It is strictly forbidden to use dust bags that are not dry.

2 Check whether the power cord and plug are damaged, and remove them after use Wind the power coil into a bundle and hang it on the hook on the top cover of the machine

3. After the water absorption work is completed, check whether there is any blockage or debris in the air inlet, otherwise it needs to be cleaned. Check whether the floating wave is damaged

4 When using the machine, you need to handle it with care and do not hit it with external force.

5 When the machine is out of use, it should be placed in a ventilated and dry place.

6 When cleaning the machine, please use Wipe with a damp cloth containing water or neutral detergent. It is strictly forbidden to immerse the main head in water for cleaning. Do not use gasoline, banana water and other corrosive detergents, otherwise it will cause the shell to crack.

7 Do not leave the machine in a For long-term continuous working, please control the continuous working time within 2 hours, otherwise it will affect the life of the machine.

8 When using the vacuum cleaner for a long time, the suction power will decrease due to the clogging of the filter mesh.

In order to prevent the suction power from decreasing, the filter screen and the cloth bag should be cleaned regularly with water. After washing, they should be dried in a cool place before use to restore the suction power.

9 If the host is hot, emits a burnt smell, or has abnormal vibration and If there is any noise, send it to repair in time and do not use it reluctantly.

10. Do not fold the hose frequently, do not stretch or bend excessively.

Other functions of the vacuum cleaner

Household vacuum cleaners are usually used to remove dust, but as everyone knows, vacuum cleaners can also perform many alternative functions.

1. Used when collecting items. Collecting bedding and other items when the seasons change takes up a lot of storage space and is easy to get rotten if not properly stored. If you put them into a custom-made plastic sealed bag, and then use a vacuum cleaner to remove the air in the bag and seal it tightly, it will not only save a lot of storage space, but also make it less susceptible to moisture and mildew.

2. Find small items. In home life, it is inevitable to accidentally drop small items such as buttons, pills, bottle caps, sewing needles, etc. You can find them effortlessly with the help of a suction device. Before use, you can wrap the vacuum cleaner's suction nozzle with a layer of gauze, and then select the appropriate wind power according to the size of the items. Then turn on the power and slide the suction nozzle back and forth around the fallen objects. The fallen objects will soon be absorbed. onto gauze.

3. Clean electrical appliances and remove dust. Vacuum cleaners can also be used for daily maintenance of electrical appliances such as TVs, DVD players, computers, keyboards, stereos, air conditioners, etc., and to remove dust inside and outside the appliances. When removing dust, you should first unplug the power plug of the appliance, open and remove the casing of the appliance according to the instructions, use a straw of a suitable shape to insert into the interior of the appliance to remove dust, then use a hair dryer to remove the moisture, and finally reinstall the casing. Just leave it as it is.

Product certification of vacuum cleaners

According to the requirements of the national compulsory product certification catalog, vacuum cleaners belong to the national compulsory certification and require CCC certification. Products that have not passed the certification may not be produced and sold.< /p>

Executive national standards: GB4706.1-1998; GB4706.7-2004; GB4343.1-2003; GB17625.1-2003;

Because the latest version of GB4706.7 has not yet been released , therefore GB4706.1-2005 is not yet fully applicable.

Development of China's vacuum cleaner market

Since the mid-to-late 1990s, China's vacuum cleaner sales have increased by 38% annually. The speed increases. Nowadays, vacuum cleaners not only have more and more functions, but also become more and more beautiful in appearance. Their prices are also getting cheaper and they are loved by many citizens. Mainstream brands in China's vacuum cleaner market include Haier, Philips, Electrolux, LG, Sanyo, Long's, Midea, Puppy, Good Fortune, Panasonic, etc.

From January to December 2006, the cumulative output of vacuum cleaners nationwide was 52,285,519.00 units, a decrease of 2.62% compared with the same period in 2005. The output of vacuum cleaners in Guangdong Province from January to December 2006 was 19,111,405.00 units, an increase of 6.69% compared with the same period in 2005; the output of vacuum cleaners in Jiangsu Province from January to December 2006 was 16,969,815.00 units, a decrease of 11.26% compared with the same period in 2005.

In 2007, China's cumulative output of vacuum cleaners was 43,632,664.00 units, an increase of 21.63% compared with the same period in 2006. Among them, Jiangsu Province has the highest output of vacuum cleaners. In 2007, the output of vacuum cleaners in Jiangsu Province was 15,318,582.00 units, an increase of 24.98% over the same period in 2006; followed by Guangdong Province, the output of vacuum cleaners was 14,251,981.00 units, an increase of 15.09% over the same period in 2006.

In the context of the global financial crisis and economic slowdown, small home appliances are unique in the domestic home appliance industry whose overall growth rate is declining. In 2008, domestic companies engaged in small household appliances all experienced substantial sales growth in the first three quarters. From January to October 2008, the completed output of vacuum cleaners reached 5.65 million units, a year-on-year decrease of 12.7%.

From 2007 to 2011, China's small home appliance market will continue to grow at a rapid pace, with the growth rate remaining at around 7%. The market size is expected to reach 18.1 billion yuan in 2011. In the vacuum cleaner market, Chinese consumers still need to make great efforts to cultivate their consumption philosophy. At least for now, this market is relatively difficult to do.

Domestic and foreign manufacturers such as Midea, Long's, and Electrolux also stated that solving Chinese consumers' lack of understanding of vacuum cleaners is the primary issue for market development. However, with the continuous improvement of residents' living standards, requirements for improving the home environment, and changes in consumption concepts, the demand for vacuum cleaners is bound to have a new breakthrough.

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Keywords: Top ten vacuum cleaner brands

1 Philips vacuum cleaner (world brand, Dutch brand)

2 Haier vacuum cleaner (well-known trademark in China)

3 Midea vacuum cleaner (well-known trademark in China)

4 Electrolux vacuum cleaner (from Sweden, a world-famous home appliance brand)

5 LG vacuum cleaner (world brand, Korean brand)

6 Sanyo vacuum cleaner (world brand, Japanese brand)

7 Dragon vacuum cleaner (well-known small household appliances in China) Brand, large enterprise group)

8 Panasonic Vacuum Cleaner (Japanese in 1918, world brand)

9 Chunhua Vacuum Cleaner (well-known trademark in China, Jiangsu famous brand)

10 Vorwerk vacuum cleaner (founded in Germany in 1883)

Principle and structure of vacuum cleaner

1. Principle of vacuum cleaner. The fan impeller of the vacuum cleaner is driven by the motor at high speed, and the air in the impeller is discharged from the fan at high speed. At the same time, the air in the dust suction part is continuously replenished by the fan. This can create a higher pressure difference with the outside world. The dust and dirt from the suction nozzle are sucked into the suction part along with the air, and leak through the leaker, collecting the dust and dirt into the dust cylinder.

2. Original vacuum cleaner.

All vacuum cleaners come with an assembled brush head for cleaning floors and carpets. Suction vacuum cleaners also come with a series of cleaning brushes and nozzles for cleaning corners, curtains, sofas and crevices.

3. Hose: All suction-type vacuum cleaners are equipped with hard hoses, which are used to connect flexible hoses and accessories for cleaning.

4. Electric brush: The cleaning head of the internal vacuum cleaner is a special accessory of the hybrid vacuum cleaner.

5. Round brush head: It also has a smaller nozzle and can rotate 360*, which is convenient for cleaning furniture, fine mesh fabrics, etc.

6. Flat nozzle: also called gap nozzle, it is a slender, flat, hard nozzle. Especially suitable for cleaning walls, radiant heaters, corners and shallow and narrow places.

7. Dust sweeping brush: Made of long and soft bristles, suitable for cleaning curtains, walls, etc.

A vacuum cleaner is mainly composed of three parts: dust collection, dust collection, and dust filtration. It generally includes a series commutator motor, a centrifugal fan, a dust filter (bag), and dust collection accessories. Generally, the power of vacuum cleaners is 400-1000W or higher, and the power of portable vacuum cleaners is generally 250W and below. The vacuum cleaner can remove dust mainly because its "head" is equipped with an electric exhaust fan. There is a wind impeller on the rotating shaft of the exhaust fan. After being powered on, the exhaust fan will generate extremely strong suction and pressure at a rotation speed of 500 revolutions per second. Under the action of suction and pressure, the air is discharged at high speed, while the air in the dust suction part at the front end of the fan is continuously discharged. The air in the fan is replenished continuously, causing an instantaneous vacuum inside the vacuum cleaner to form a negative pressure difference with the outside atmospheric pressure. Under the action of this pressure difference, dust-containing air is sucked in. Dust and other debris enter the dust filter bag through carpets or floor brushes, long pipes, elbows, hoses, and hose joints. Dust and other debris are retained in the dust filter bag. After the air is purified by the filter, it is discharged from the rear of the body.