2014. Second-year undergraduate works. The 9th Huadi Industrial Design Competition Supreme Gold Award-Share this early design because it is one of the works that have a great influence on me! This is also my first debut in an industrial design competition. Through this work, my personal ability has made a qualitative leap, so I have come to a conclusion that real efforts can be rewarded! In this way, I hope to encourage the design students who are still in college to see this work! Please let every design work of your own have its due weight, especially for yourself ~

Preliminary research on the cigarette machine market has learned that for Chinese cooking methods, suction has always been the core selling point of cigarette machines, followed by noise, cleanliness, beauty and other needs.

The investigation of the principle of the cigarette machine shows that the suction force of the cigarette machine depends on the fan and its internal air cavity structure.

Through the investigation of fans, it is known that commonly used fans are generally divided into three types: centrifugal fans, axial fans and mixed flow fans.

Among them, the biggest reason why centrifugal fans are mostly used in household smoke machines is that their wind pressure is very high, but the air volume is less, and the air volume sucked and discharged is not much. Although the air volume of axial fan is very large, its wind pressure is very low, and the range of air volume is very small, so it will not be applied to smoke machines.

For the "fan", the linear suction is the largest, while the inlet of the top suction cigarette machine and the centrifugal fan are in a vertical structure, which will reduce the suction efficiency. Furthermore, the centrifugal fan itself has less air volume. Therefore, the application of centrifugal fans in cigarette machines has certain limitations. At the same time, more and more cigarette machines have joined the "big suction melee", and the methods of increasing suction are also different. But the core has not changed so far, that is, the centrifugal fan.

This cigarette machine abandons the centrifugal fan and applies the mixed flow fan to the cigarette machine for the first time.

The reason for adopting mixed flow fan is that it is between centrifugal and axial flow. His wind wheel does both centrifugal motion and axial flow motion, so he has both the air pressure of centrifugal fan and the air volume of axial flow fan.

The mixed flow fan mainly consists of impeller, casing, inlet collector, deflector, motor and other components.

The impeller is welded to the hub by a twisted flat plate with meridional acceleration characteristics. After testing, it has good aerodynamic performance.

When the mixed-flow fan is applied to the cigarette machine, it can be kept parallel to the smoke inlet without affecting its efficiency. The inlet current collector and the smoke collecting cavity can form a perfect airflow butt joint, and the whole cigarette machine is equivalent to a mixed-flow fan. The structure of the wind cavity is smooth and symmetrical, which is not only a perfect wind cavity, but also an invisible funnel. Oil fume will flow downward when liquefied in any part. The smooth and symmetrical inner wall also slows down the pollution speed of the wind cavity and is convenient for disassembly and cleaning.

Its disadvantage is that the direction of airflow is parallel to that of the motor. If it is replaced by lampblack, it will cause serious pollution to the motor,

In order to solve this problem, it was decided to abandon the traditional motor operation mode and switch to magnetic levitation electromagnetic pole propulsion.

The structure of the mixed flow fan naturally meets the potential energy of the bowl, so only ordinary permanent magnets are needed. The suspension effect can be achieved by adjusting the balance of gravity and repulsion by using the principle of same-sex repulsion. In order to achieve high-speed operation of the wind wheel by constantly changing the nature and strength of the transverse electromagnetic pole.

The application of magnetic levitation solves the shortage of mixed flow fan in the smoke machine, and separates the motor part from the rotating part, making it easier to disassemble and clean. This is my core innovation in the application of structural technology, the magnetic levitation mixed flow fan.

The product form design adopts bionic design and is inspired by sharks.

The black shell of the cigarette machine is refined and integrated through the fin part of the shark's back, so that it can add a sense of vitality and vitality without losing the industrial taste.

The air inlet baffle of the smoke machine is the morphological feature of the shark gills. Gill itself is a kind of thing in a filtering state in nature. The purpose of using gill element is to convert the smoking process of cigarette smoke into a breathing state through morphological semantics, giving people a kind of thing that it is not only smoking oil smoke, but also helping us filter the environment, thus increasing the affinity between people and products.

Only when there is water can there be fish. Water and fish are a harmonious whole in one environment. The smoke collecting cavity of the cigarette machine is a complete curved tempered glass, and the morphological elements come from the ripples on the sea surface.

The fin is on the water surface and the gills are under the water surface. The design purpose of this form is to maintain the sense of industry and create a harmonious natural state. Here is all the innovation points of this cigarette machine, from the innovation of structure and technology to the innovation of appearance and form.