How Dyson, who has full “wind attributes”, played with air

I don’t know if you remember, in some American dramas or European and American movies, you can occasionally see a vacuum cleaner with a big bag hanging underneath and a long power cord behind it. As shown in the picture below, it is stupid. Heavy again.

Seeing this old bag-type vacuum cleaner today will give people a feeling of "really tired from doing housework."

Image source: Pinterest

But what I am curious about is how did the vacuum cleaner evolve from the kangaroo-like form to the cordless form that can be operated with one hand today?

I found the answer at the Dyson Technology Immersion Experience Day on October 20th.

Breaking the tradition, mankind ushered in the era of wireless vacuum cleaners

The dust bag vacuum cleaner mentioned above was born at the beginning of the last century. The so-called "big bag" is actually a dust bag equipped with a filter. It is large and cumbersome. It will become clogged after a period of use. Trouble, the suction power will also decrease.

Just when users are distressed by this defect, it is the moment of the "heavenly man". This "man" is James Dyson, the founder of the Dyson brand.

He who loves to invent on weekdays, he looked at the vacuum cleaner in his home "double-clicked" and planned to remodel it himself. He got inspiration from the cyclone separator used to separate wood chips in industrial sawmills and applied the airflow technology to Among the vacuum cleaners.

After N tests, Dyson first used cyclone separation technology in 1982 and applied it to the prototype of the world's first bagless cyclone vacuum cleaner. This prototype has a resounding name, "G-Force".

Dyson further improved the cyclone technology on the basis of the prototype. In 1993, it launched the DC01 vacuum cleaner equipped with dual cyclone technology. At that time, the price was twice that of competing products. It seems that Dyson’s price is a "historical problem." But the cleaning power and suction power are stronger than other products, so after the DC01 was launched, it became the best-selling vacuum cleaner in the UK at that time.

Since then, Dyson has been playing with airflow technology.

If you immerse yourself in further studies, the airflow can also play a variety of tricks

Later, Dyson made breakthroughs in innovative fields such as cyclone technology, digital motors, and Air Amplifier technology. These technologies are all exhibited in the experience today.

▲On the right is Dyson's digital motor

Take the airflow doubling technology as an example. This innovation is now applied to many of Dyson's products. The most well-known is its bladeless fan.

It can be seen from the cross-section of this bladeless fan that the airflow circulates in the annular airflow cavity and is accelerated to blow out through the slits, and the arc-shaped airfoil guides the jet direction of the airflow.

▲ Long-distance air supply

As a result, it is presented in a safe and leafless form, without the discomfort caused by the direct air supply of traditional fans. This air doubling technology has also been applied to the Dyson Supersonic hair dryer. This "Hermes in the hair dryer world" breaks the design style of the traditional hair dryer and has attracted the hearts of many girls with a novel experience.

It can be clearly seen in the live experience area that the airflow blown by the Dyson Supersonic hair dryer can make the ball stably suspended in the air, which proves that the airflow it blows is very uniform, so that the hair can be dried quickly without hurting the hair.

Another Dyson Pure Cool Me purifying fan on display was also very interesting. Inspired by the aerodynamic characteristics of the Harrier fighter, Dyson invented the Core Flow airflow aggregation technology and applied it to this fan.

▲Adjust the sphere, where to play

Dyson Pure Cool Me purifying fan is also bladeless, but its shape is obviously different from the bladeless fan shown above. There is a ball on the top of the former, and the airflow blows out from the bottom and jets out along the spherical surface. When the surrounding airflow is meeting the dome, a high pressure is formed below it, so under the influence of this high pressure point, the airflow is forced to eject the concentrated airflow.

Image source: Dyson

The Harrier fighter uses this principle to achieve vertical lift, and Dyson uses it to create an interesting fan.

Image source: wikiwand

Moving forward, we saw this white room, with many thin columns standing inside, with air detectors tied to the thin columns, and a Dyson HP06 air purification fan in the corner of the room.

27 square meters, the size of the living room of most Chinese families.

This is the conclusion reached by Dyson engineers after investigation.

They created the original POLAR (Point Loading Auto Response) experimental method and specially created this 27 square meter room to test whether their own purification fans can achieve uniform purification. If the readings of the detectors distributed in different positions are almost the same, it indicates that the desired effect has been achieved.

In this experience day event, I saw an intuitive display of Dyson’s many product lines and the technical principles behind them.

Behind these technologies is the continuous professional research of more than 6000 engineers and scientists.

After understanding, I will understand that the reason why Dyson products are more expensive than competing products is not the luxury-like brand premium, but the necessary cost to maintain long-term research and development vitality.

Innovation does not stop, now Dyson is not only playing "wind"

At present, Dyson's products on the market, such as vacuum cleaners, hair dryers, air purification fans, and hair stylers, are basically focused on "air flow."

In the future, Dyson will continue to make efforts in solid-state batteries, digital motors, vision systems, machine learning, and artificial intelligence.

In the home scene at the end of the exhibition hall, there is a table lamp, which is Dyson's latest Lightcycle table lamp. Because the theme of the experience day is "Strength·Flow", and it talks about concepts related to airflow, there is no demonstration content of this desk lamp technology at the scene, it is just placed there as a scene display.

It stands quietly in the corner and shines alone. This table lamp designed by Dyson’s founder and son, Jack Dyson, may become a new milestone product for Dyson in the future, leading the brand to introduce innovations in more fields. product.

Source of title picture: Dyson

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