Soon after the launch of the cleaner advertisement, some users noticed the water droplet screen in the first five seconds, which was a bit unusual.

Because that's not a special effect.

No matter how real the special effects are, in the eyes of those film-related and art-related users, they can always see the flaws.

I can't find any flaws in the five-second water droplet picture, and Two Angels Technology Company also replied in the comment area, saying that this is real shooting, without any special effects.

So now many people are discussing how these droplets of water only burst open.

Now Brother Lu says he also has a high-speed camera, and he is ready to try the dripping droplets.

The users who poured into the live broadcast room were of course so excited that they screamed.

Xiao Brother Lu said as he moved quickly in his hands.

After removing the plastic film, he just quickly read the text information on the package to the users in the live broadcast room, and then lifted the magnetic lid of the box.

In order to facilitate storage, the cleaning instrument packaging box is an open structure and is fixed by magnetic suction, which can be convenient for users to store.

Lift the box and see a neatly stacked gray flannel storage bag on top.

Underneath the pouch is a nylon waterproof pouch with a strap.

This is followed by an instruction manual, a product certificate and a warranty card.

There was nothing to explain about these things, so Brother Lu took a cursory look at them and took them out and put them aside.

When these things are taken out, accessories such as the cleaner, the adsorption charging base, the charging cable, and the spare brush head are displayed in front of the user's eyes.

"Okay, these are the things we want to disassemble in detail in this live broadcast," Xiao Lu Ge took out the cleaning instrument from the box, held it in his hand and played: "Let's first analyze this product from the feel and appearance. ”

"Now we all know that the cleaner is used to clean the body in the bath."

"When cleaning the body, the back and lower back are the hardest areas to touch."

Xiao Lu Ge stood up and demonstrated it to the users, and the result was that the cleaner was in his hand, and he could easily touch any area of his back.

"It's also very comfortable to the touch."

Brother Lu took a bottle of mineral water from the side and poured it on the cleaning instrument, and he wanted to try the anti-slip effect of the cleaning instrument in the waterlogged state.

The effect is quite perfect, and after being dipped in water, Xiao Lu Ge said that the grip has become stronger.

And the silicone material plated on the outside of the cleaner is particularly comfortable to hold in your hand.

Users asked him to power it up and give it a try.

Brother Lu smiled and said that he would dismantle it first. Finally, take another one and try the droplet explosion effect.

After looking at the fuselage part, the next thing is to brush the head.

The brush head is replaceable and is connected to the body by stainless steel bearings with stops and slots. To replace the brush head, simply unplug it firmly.

Xiao Brother Lu pulled off the brush head and introduced to the users in the live broadcast room: "We can see that the support frame of the brush head is a metal structure, and the surface is covered with a brush head coating. ”

"Please forgive me for being a little bit of a beginner and I can't see what the coating is made of."

"However, according to the introduction, the brush head coating uses the same breakthrough technology as the magnetic levitation linear motor."

"After introducing the appearance, then I'm going to open it next."

There was a sound of shouting and quick dismantling in the comment area.

In Xiao Luge's previous dismantling works, when dismantling some tightly packaged electronic products, he always likes to pursue a miracle or a cutting machine to break ten thousand methods.

Once you encounter a shell that is difficult to overcome, the next step is the part that users like to see.

However~

Little Brother Lu encountered a problem in his first step.

He turned the cleaner around, but couldn't find a hole in the screw, or a place to put a screwdriver.

There is no brush head, there is only one bearing extending out, and the bearing is surrounded by a sealing ring.

There is no tail either, where there are only a few copper contacts that are used to attach to the charging dock for charging.

Brother Lu studied for a long time and said, "It seems that the outer silicone protective layer has to be removed in order to find the screw holes." ”

It can only be dismantled violently.

Brother Lu was familiar with the road and found an electric grinder with a flexible shaft from the side, and without much to say, he replaced the serrated blade and started cutting directly.

The silicone protective layer is more difficult to remove than imagined, and in the past, whether it was plastic, nylon, or silicone, the electric grinder turned on and cut it quickly.

This time, the silicone is the same as beef tendon, and it is particularly difficult to cut, and it takes half a day to cut a cut.

Little Brother Lu had an idea and replaced the electric grinder with scissors.

Sure enough, scissors are better than electric grinders, Xiao Lu Ge explained: "This silicone has anti-wear treatment, but anti-wear is not anti-shearing. ”

Cut open this layer of silicone protection, and finally saw the legendary screw hole.

These screw holes are divided into white fuselage shells, and Xiao Lu Ge used an electric screwdriver to remove these screws, found the buckle position, and pried it hard to pry open the shell of the cleaner.

The workmanship inside amazed Brother Lu.

There is a long sealing ring at the connection of the two shells, and there is also a small sealing ring at the screw hole connection inside the two shells to seal the waterproof.

The charging connection of the copper contact at the tail is treated with sealing.

Brother Lu adjusted the shooting lens and focused on the inside of the cleaning device.

A sense of industrial and technological beauty comes from the pavement.

The inside of the cleaner is a complex structure composed of mechanics and electronics, and the silver-white aluminum alloy frame is embedded in the inside of the shell.

In addition to a long motor, which has never been seen before, is attached to the frame machined by C, and a differential-like vibration transmission structure is connected to the motor bearing.

Below the motor are complex cables, motherboards, step-up capacitor boards, motor drive boards, batteries and other devices.

These parts are very tightly packed and neatly arranged inside the housing, so that there is no extra space inside the long cleaning device.

Xiao Lu Ge regretted dismantling it a little, because it wanted to start the power supply at this time to see how the internal mechanical transmission structure worked when it was running.

However, at this time, the power supply can no longer be started, because the shell used to fix the frame on it has been dismantled, and the starting power supply bearing and vibration transmission structure may collapse out.

Taking a breath, Brother Lu decided to dismantle the parts he was familiar with first.

Motherboard structure.

"First of all, let's remove the cables that connect the screen to the buttons." Brother Lu said as he used the extra-fine model crocodile pliers to clip off their quick plug cables.

Remove the cable and start removing the screws.

Choosing the right screws, Brother Lu removed all the motherboards.

"Let's start with boost capacitors." Brother Lu took the motherboard connected to the battery aside and observed the details on it with the help of a magnifying glass.

"I've taught you before, look at the boost module first and look at the capacitor." Xiao Lu Ge used a very thin precision screwdriver to point to the capacitor on the boost module and said, "This is a 7.4V capacitor, which is responsible for boosting the battery." ”

"I saw in the manual that the rated working voltage of the magnetic levitation linear motor is 5V. Then this 7.4V boost capacitor should be in clean mode to provide a larger vibration frequency to the motor. ”

"Okay, there's nothing nice about the boost module, this thing is available on many electronic devices, and you can buy it online for a few dollars or a dozen dollars."

"Let's take a look at its motherboard."

Brother Lu took the largest motherboard and carefully inspected the electronic components on it.

"We can see that there is a flash memory produced by Yangtze River Storage in the upper left corner of the motherboard, which should be used to record the user's last operation mode, as well as the working mode of the device in different modes."

"Look at the cable connection, down there should be its display chip, and there is a small heat sink on it."

"Let's remove the heatsink."

"According to the information on the motherboard, we know that this is an embedded chip of Texas Instruments, and the model number is TFP401A. This kind of chip is usually used to process the display screen of the display, and it is obviously overused here, and I don't think the heat sink is used, which is a sinking design. ”

"Because the cleaner only has a blue screen display, but the price of this chip is not high, it doesn't matter."

"Look here, there's also a solid state relay from Naif."

"The effect is to amplify the tiny control signal on the button into a high-current load that drives the motor.

"There are also two power outputs here, and the traces are connected to the motor drive board."

"At the bottom is the BQ133 lithium battery charge and discharge management chip ......"

Xiao Lu Ge earnestly explained the role of every module and chip on the motherboard to more than 200,000 users in the live broadcast room.

Under his explanation, even users who have no knowledge of semiconductors can get a general idea of how this motherboard works.

All that's left is the motor drive motherboard.

This motherboard is directly connected to the motor, and when the cable is removed, it is only the size of a beverage bottle cap.

But there is a chip embedded in it that is not much smaller than the motherboard.

There is also an aluminum heat sink on the chip, and after removing the heat sink, Xiao Lu was dumbfounded.

Because of this chip it has never seen before.

There seems to be a wide variety of chips, but when they are categorized by function, there are not many left.

And each type of chip has its own number, such as high-end chips, MCU, CPU, GPU and so on.

Interactive chips are usually AD/DA.

Power management is power-related, usually PMIC, DC, and AC.

But this chip, Xiao Lu Ge doesn't know it at all, and the chip pins are also a little different, and it can only be seen according to the serial number that it has a wide core bit, the highest frequency, and cache data, as well as the manufacturer of the chip. ”

"This should be a specially redesigned chip to drive a magnetic levitation linear motor."

Seeing that there was no big reaction in the comments, Xiao Lu Ge said: "It seems that everyone doesn't know the difficulties of designing a new chip." ”

"Let's put it this way."

"According to the parameters of this chip, redesigning such a chip is no less complex than designing a car. Without a design cost of one or two hundred million yuan, and a design cycle of up to half a year, it is simply impossible to do it. ”

Brother Lu was right, but he didn't know that this chip didn't need to be designed.

All drawings are readily available, even the electron masks are ready-made. The chip foundry only needs to make a mask and adjust the equipment, and then it can be produced directly.

"Now it's time for the most important part of dismantling the motor!"

"After disassembling the motor, let's try to see if the water droplets drip on it and whether it will explode."

……

Then little Brother Lu overturned.

When he used a precision screwdriver to remove the magnetic levitation linear motor from the aluminum alloy frame, he found that the motor turned out to be a piece of metal that looked like it fit perfectly.

After tearing off the shockproof cushioning layer, it is a black metal block, knowing that there must be a very complex structure inside, but I can't find a place to dismantle it.

"Maybe it's glued together, let's try heating."

Xiao Lu Ge found a heating air gun and blew on it for three minutes, and the cable interface was about to melt, and there were no traces of glue opening on it.

？？？

Use model crocodile pliers to tear the tail cable vigorously to see if there is a breakthrough here, and the result is that the cable is all torn.

There is nothing to be done at this time.

"Haha~"

"Strongly demand to get on the cutter."

"Electric drill, use electric drill to drill it."

"I don't have a hammer, smash it."

The audience was about to burst into laughter, it was the first time they had seen such an excellent motor, and they all came up with ideas to see the excitement below.

Brother Lu was so tired that he was sweating, he tried to knock on the motor, and after feeling the thickness of the shell, he directly gave up the cutting plan.

This is obviously an aluminum-manganese alloy shell, and this material depends on his electric grinder, and it is estimated that it takes one hour to cut the shell.

Forget it.

"Give up and give up, I'm afraid that violent cutting will destroy the structure inside, and then everyone will not be able to see clearly."

Brother Lu gave himself a reason, and then entered the water drop link.

A high-speed camera with 545 frames per second shooting function was taken to the workbench by Xiao Lu Ge.

This high-speed camera is not big, and after carefully setting up the camera, Xiao Lu Ge opened the packaging box of another cleaner, took out the cleaner from it and held it in his hand.

At the same time, prepare a dropper ready to drip water droplets towards the cleaning head.