The hot summer is a hot and restless season. The hot sun in the afternoon and the hot ground temperature are all testing our heat resistance and perseverance. At this time, everyone hopes that there will be a cool breeze coming in, which will bring the unbearable heat away from the heart. Someone said that the mind is calm and naturally cool. Don't care about these details. However, it's no use for me to try. I can't control my sweating. For office workers who are sedentary, there must be an electric fan on their desk. However, the desktop electric fan I want to introduce to you today is different! "Flip the fan" can reveal your good mood anytime and anywhere. Shenzhen Style Home Furnishings Co., Ltd. brought this fan, which is very stylish at first sight. The shape and color are quite unique, and the dynamic shape is very dynamic.

To be exact, the fan is just one of the products of the style school. The stylepie style school is a brand full of young elements. It derives from the inspiration of life, and presents various digital products with warm and intimate creativity from cold and tasteless technological functions. It has brought many surprises and affirmations to people everywhere. At the same time, provide the best style company in all aspects of life for everyone who pursues beautiful things. Next, I will have a close look at this rollover fan from the three aspects of appearance and structure, disassembly and modification, and actual experience.

1： Appearance introduction

Flipping the fan's outer packaging carton is relatively common. In addition to printing the plane shape of this fan, some detailed parameters of this fan are marked on the bottom. model: A201。 Material: ABS plastic. Size: Φ125*50MM。

There are four symbols printed on the side. Don't worry. I'll explain it carefully later! This is the first time for stylepie. I wonder if the contents are really styled? It's worth seeing.

When I opened the cover, I saw that the manual was printed on the paper box unexpectedly. ok It also saves a lot of costs and makes a lot of contributions to environmental protection. The above describes how to use this fan and what the four symbols just saw mean! It turns out that the fan has the speed regulation function in the rollover mode. They are natural wind, weak wind, stroke and strong wind. This is more practical than the general desktop fan.

The contents include a fan, certificate of conformity, warranty card, product description and a small cotton felt pad. Although it is small, it should have three packs of certificates! The manufacturer is not ambiguous.

The main body of the fan is composed of red fan blades and black frame. It looks full of style. There are 6 official colors to choose from. I believe there will always be one that meets your needs. The front center ring is printed with the symbol of the fourth gear of speed regulation mode. It can be placed 360 degrees in use. The upper part represents the running mode, which is easy to see. The USB power cable is 150cm long and adopts an integrated connection mode. The rollover fan can work as long as it is connected to an external USB5V power supply. Such as mobile power supply, mobile phone charger, computer/laptop U port, etc.

There is only a three gear toggle switch behind it. To the left is the OFF constant speed mode (turn off the rollover mode), which defaults to stroke operation. In the middle is to turn off the power supply, and to the right is the ON rollover mode. Turn on rollover induction, and the wind speed switches with the body turning. There are four wind speed options. Does that sound magical? You can adjust the speed by turning it over? How does it work? Don't worry. Further explanation will be given in the subsequent disassembly process.

Use the complimentary felt pad to see if it really looks like that. If this small felt pad is not used, the fan will automatically rotate around on the smooth desktop.... It seems that this place needs improvement. After a careful look at the original position of the fuselage, the contact surface near the desktop end is relatively small, and only three plastic fulcrums touch the desktop in the plane. With the influence of wind speed and rotating speed, plus the light weight of the fan, it will not automatically drift! It seems that we need some trouble here.

By the way, the circumference of the overturning fan was measured. It is close to the official data. Small in size, it is about the same size as an ordinary 4-inch rotary fan. Is the rollover fan more styled?

2： Disassembly and modification

Use a hard paddle to disassemble the rollover fan. The mask part is assembled by means of a hook, which is easy to split along the edge for disassembly.

The inner wall of the mask is also locked with a metal counterweight to increase the stability of the fan.

The rotating blade is a 7-piece spiral structure. Compared with the ordinary fan, there are three more blades. Will the air volume increase if there are more blades? Someone who has learned aerodynamics can help me answer this question!

The key mechanism behind the fuselage is relatively simple. Now let's take a look at the electrical part!

Disassemble the four fan blade fixing screws and take out the fan circuit board.

The main parts are distributed on the front panel. Among them, the gravity switch sensor and pulse width modulator chip mark have been polished off, and the specific model cannot be seen. Analyzed according to the circuit layout and working principle, the gravity sensor is used to detect the position of the current overturning fan, and the pulse width modulator outputs different power supplies for the operation of the operating coil, that is, the speed regulation function of the fan. With the combination of these two chips, the fan can be flipped at will for different scenarios.

Continue to disassemble the rotating blade part, and take out the white plastic snap ring piece inside with tweezers. It can be seen that there is a circle of black soft magnetic material on the inner wall of the rotating blade fan.

The stator part is wound by a double winding coil. The copper core coil and the copper shaft sleeve look very textured. It should be pointed out that this is a brushless motor structure. The resistance of the fan drive shaft is small when running, which means that the noise part is better controlled!

DIY modification part:

Since this fan is in rollover mode, you need to view the symbol above the mask to flip to the desired wind speed. Sometimes the brightness of the environment is dark, and my eyes are not good when I am old. It is really difficult to see the symbols clearly. After disassembly, add a light reminder effect, and dig holes in the corresponding place under high wind mode. The aperture should be controlled within the size of a red blue co negative dual color temperature LED. After installation, the exposed part of the lamp cap shall not exceed the rotor blade, otherwise the fan will be stuck. Connect the corresponding control circuit and protect the exposed part pins with heat shrinkable sleeves.

Power on to see how it works... What needs to be pointed out here is that. During operation, the red LED represents the status in constant speed mode, while the blue LED represents the status in rollover mode. The blue light display position represents different wind speeds. The position at the top means strong wind, and the position at the bottom means low wind. Similarly, the left side is the natural wind mode, and the right side is the stroke mode. When the ambient light is poor, you can also see the current working mode of the rollover fan from a distance.

3： Practical experience

Reassemble the rollover fan and turn on the power switch. A long lost cool wind immediately emerged. Listen carefully to the flip fan and there is no abnormal noise. It is obviously a silent desktop fan. When you are not working, you can enjoy the wind in the afternoon to spend the hot summer.

Compared with the 4-inch iron leaf fan in output working state, it can be seen that the working current of the iron leaf fan is about 0.45A.  

When the overturning fan works, the output current is 0.39A in high wind, 0.17A in wind and 0.07A in low wind.

When the rollover fan turns on the natural wind mode, the output wind speed is larger and smaller when simulating the natural wind state. The output current is controlled between 0.11A and 0.25A and is constantly changing.      

Under constant speed mode, the overturning wind speed is close to the stroke level, and the output current is controlled at 0.19A.

Compared with the iron leaf fan, the turnover fan has a slightly lower air volume under the high wind mode. Generally speaking, the output air volume is related to the motor speed. The motor speed is directly related to its working current. The differences between the two can also be seen from the above data.

The fan mentioned earlier will drift unnaturally on the smooth desktop, so it needs to place a small felt pad under it to overcome it. Mmm! After thinking about it, I don't think it's necessary to be so troublesome. If you want to move the fan to another position, you need to re place the small felt pad. There is just a power plug protective cover at home. By the way, it is directly installed under the overturning fan, and the contact area increases when the distance is pulled apart. The stability is improved a lot, which can overcome the unnatural drift of the fan. Of course, it can also be improved with other materials. If the official omits the small accessory of the small felt pad, can you add the rubber foot pad to the shell design to increase the friction force. That would be even more perfect!

Summary:

The rollover fan is convenient for daily use and easy to operate. In addition, multi-mode wind speed selection adds a lot of fun to modern young people. If you like fashion, you are looking forward to joining in the experience! Accompanied by you will no longer be a boring summer, but a dynamic fan. Did you turn it today?