"Water is no good, air is no good,... what's the use of the best?" This sentence is actually very reasonable. If the earth does not even have the most basic conditions for human survival, what else can we do? Due to the increasingly serious haze, air purifiers have become popular in recent years. It's a great honor to get this trial experience opportunity of "Zixiao Intelligent Wireless Charging Air Purifier" by Lei Feng.com. Let's have a look:

Unpacking

The kraft paper packaging box is delivered directly from the factory. The shipper may think that it is a local express delivery. A plastic bag is thrown directly, so when the package is taken out, there is some dirt on it.

The back of the box is the product information label.

The accessories are quite simple. A purifier host, a car mounted anti slip pad, instructions, and an 80cm MICRO USB power cable (if it is really used in the car, 80cm is not enough, not sincere)

Appearance Details

The color and style received by Xiao Bian is Tuhaojin, and the overall industrial design of the appearance is standard, which gives a strong sense of plastic in the hand (nonsense, plastic is hard to make, but it also has a sense of metal, hey, there are really factory made plastic products that look full of metal texture, which is called Niu B.) Here we need to spit out some trouble about the mold making, which gives a slightly rough feeling, especially in the interface (USB Interface/power switch). If this is an engineering prototype, it means that the mold still needs to be adjusted and polished. If it is already a mass production machine, the workmanship is a bit out of proportion to the price

The three dimensions of the purifier are 140 * 140 * 53mm, which is MINI. The above figure is the size comparison with the fruit 5S

The white anti-skid rubber frame area on the top of the purifier is a wireless charging area The lower part is the air inlet grid of the purifier On the other hand, it is the key switch for the power supply. The switch feels ordinary, or it is just a switch, and has no feel at all

The side is the air outlet, and the purified air is blown out from this grid

There is a standard USB interface on the side of the switch key, and the manual notes that it is a 5V 1A power output port, so it is very convenient to charge the mobile phone (wired mode)

The other side is the MICRO USB power input interface (5V 2A is recommended), where you can see the shrinkage around the opening Workmanship Things need improving

There are four white anti slip foot pads at the bottom. There should be four mounting screws under the foot pads In the middle is the equipment identification sticker

After the purifier is connected to the power supply or the car is parked, the power display light is red. At this time, the USB interface or wireless charging area can charge the mobile phone Turn on the power, the light is blue, and the purifier starts to work (it can also charge the mobile phone)

Experience

First, let's talk about air purification. In the face of such MINI's figure, I had expected the purification effect Since there is no professional PM2.5 test tool in the small editor's hand, the specific purification value cannot be displayed intuitively to everyone Of course, you can breathe and feel. Unfortunately, Xiao Bian's nose can't measure the accurate PM2.5 value, so Let's consider it useful for the time being Obviously, the effect should not be great indoors or on the desktop, but it's OK to put it in the car The operating noise is also within acceptable range (According to internal information, some of these testers have professional PM2.5 testers, so you can read their masterpieces to see the intuitive purification effect. The editor can only talk about his subjective feelings from the perspective of an ordinary consumer.)

Next, let's talk about wireless charging. After I got the product, except for the words "wireless charging function" on the front of the package, nothing about wireless charging was mentioned in the manual

I still have a little understanding about wireless charging. First of all, the charging base is a transmitter, so the mobile phone should be equipped with corresponding receiving equipment (except some specific mobile phones have wireless charging receiving devices when they leave the factory). Most of them are realized by receiving coil patches or mobile phone back cases However, the test experience purifier was not equipped with a receiving kit for commonly used mobile phones with the package. I thought that the commonly used mobile phones should be OK, so the above two photos appeared Mobile phone on Xiaobian's hand: Fruit 5S, 6S, Xiaomi 4 took turns, but all ended in failure So far, a very evil conclusion flashed in my mind: "This product can't fool everyone, can it be that there is a 5V fan installed in it?" (I have seen the mobile power news filled with sand on the road before), but after thinking about it, the products that can be listed on Lei Feng's website will not be so bad!! Finally, Shangguan found that the wireless charging support model of this base is only applicable to the designated models of each brand It happened that these mobile phones in Xiaobian's hands were not listed You need to purchase the corresponding charging patch kit (99 yuan) from the official. As an online media public test product, you don't have one charging kit. This time, the manufacturer is too stingy! So, the following dismantling chapter came into being, to see what the devil is in it?

Disassembly

Before disassembling the machine, I did my homework (Du Niang) on the working principle of the air purifier From the working principle, there are two main types:

One is The principle of passive adsorption filtration air purification. Passive air purification uses fans to draw air into the machine, Filter the air through the built-in filter screen, which can mainly filter dust, odor, disinfection and other functions. This filter type air purification Most of them use HEPA Strainer + Activated carbon filter screen + Photocatalyst (cold catalyst, far catalyst) + Ultraviolet disinfection+ Electrostatic adsorption filtration Net and other methods to deal with air. among HEPA The filter screen has the function of filtering dust particles, and other activated carbon mainly adsorbs dust particles Therefore, it can be seen that there are different labels on the market, such as fan filter, photocatalyst, UV, static electricity The working principle of the seemingly chaotic air purifier is basically the same, Both are passive adsorption filtration type air purification.

The second working principle It is an active air purification principle. Active air purification principle and passive air purification principle The fundamental difference is that the active air purifier gets rid of the restrictions of fans and filters, rather than passively waiting for indoor air It is pumped into the purifier for filtration and purification, and then discharged through the fan, which effectively and actively releases the purified water into the air Bacterial factors, through the characteristics of air diffusion, reach every corner of the room to purify the air without dead corners. At present, technically The relatively mature active purification technology mainly uses negative oxygen ions as purification factors to treat air and ozone as purification factors There are two kinds of air treatment. These two are typical air purifiers based on active purification principle.

Lift down the four white screw covers at the bottom with explosive force to see four cross screws.

After opening it, we can see that this purifier is not fooling us. It has everything we should have, fans, filter elements.....

The overall structure is like this. The red PCB on the top is the wireless charging module, and the green PCB is the power control board. The three white interfaces on the top are respectively connected: the fan, the wireless charging module, and the negative ion generator. There is also a filter element about 4 * 2.5CM in front of the fan outlet.

The close-up of the fan is MINI, and the model, parameters and manufacturer information on the fan are very detailed. Interested friends can go to understand.

Induction cooker, transmitter module of wireless charger.

Wireless charging scheme, I'm not an electronics major, so I won't comment here. Those who know something about it can understand it. After checking the two ICs online, it seems that many wireless charging schemes use this module. The official said that the wireless charging board used Texas Instruments (TI) The conversion rate of the board side of the chip is up to 93% (this is the conversion rate of the board side, in fact, it is very good that the conversion rate of the real wireless charging can reach more than 80%). Since the official does not have a wireless charging kit, it is also impossible to actually test the efficiency of the wireless charging. Let's take a look at the physical hardware parameters here.

A negative ion generator can also be found under the green power control board. From the working principle of the purifier we mentioned above, the Zixiao intelligent air purifier should be a hybrid of two types. That is, there is a passive type of fan to draw air to filter the filter element, and there is an active purification effect of the negative ion generator. The design concept is good.

A close-up of the anion generator. The model, parameters and manufacturer information are also very clear.

The official said that the multi-functional composite filter screen has a volume of about 4 * 2.5CM, and the official did not say how often to replace it. This is the filter screen of MINI, so Xiaobian always thinks that the indoor desktop effect should be very ordinary.

Finally, let's take a look at the power control panel. It's the same sentence. If you are not an electronics major, you won't comment. (The subjective feeling is that the MICRO USB 5V power supply comes in and directly sends out a standard USB port to charge the phone.)

Well, all the core components of the purifier are here: fan, wireless charging module, negative ion generator, filter element, power control panel. Do you think it's easy?

Finally, I made a schematic diagram of the simulation work. Hmm, the purifier, that's it!

Trial summary

If the MINI purifier is used indoors, it obviously has little effect, and the official position is directly on the vehicle. I will go to the Qingming small long vacation right away, and I plan to put it on the car for a short and long journey. Follow up use effect and experience will be added.

First, let's talk about the advantages:

1. The design concept is good because of the combination of active and passive.

2. Small size, easy to use in the car. In fact, the volume is a double-edged sword. The size of the volume determines the size of the inner filter screen and fan. It is too small to keep up with the power, and the filtering efficiency and effect are poor. It must be good to put the household purifier on the car, but you have to leave a place for TA.

3. With wireless charging function, one machine can be used for many purposes, which is convenient and practical.

Finally, let's say what needs to be improved:

1. There is still room for improvement in the product mould. I hope that the follow-up products will be more exquisite.

2. Notes on wireless charging need to be included in the manual, otherwise people think that this function is not available.

3. If the filter screen needs to be replaced, the design of the foot pad screw is too difficult to take out. I hope to replace it with a soft rubber pad.

4. If an upgraded version is to be released later, an air quality detection sensor can be built in, preferably with a digital display screen, which not only increases the practicality and selling points of the product, but also improves the competitiveness of the product.

5. From a commercial point of view, the packaging and accessories for this shipment seem a bit too anxious and casual. People rely on clothes, and products also rely on packaging. If we redesign a beautiful package and accessories, it may bring unexpected results.

Conclusion

Judging from the appearance and packaging accessories of the products, "Zixiao" may also be a start-up company, but there are also difficulties in funding or one way or another. With money, who doesn't want to open a tall mold? But if you really have material, you hope to accept the constructive and executable suggestions of the probationer. I also hope that your products will sell well, earn your first bucket of gold, and bring you better and more wonderful products in the future.

Of course, as a member of the earth, I hope to start from my own, energy conservation and emission reduction, garbage classification, and green travel..... I really don't want to see our next generation (or the next generation) wear gas masks to travel every day. May the earth be safe tomorrow!