More people use wired charging than wireless charging?

At the beginning of this year, Meizu released the world's first "no hole mobile phone" Meizu zero. The whole machine has no holes and buttons, and is integrated. The next day, vivo also released the concept machine vivo apex 2019. In order to achieve a comprehensive hole free design, the two mobile phones are equipped with wireless super fast charging, screen fingerprint, screen voice technology, ESIM virtual card and other technologies.

Reducing the number of openings is a major trend in mobile phone design in the future. The home key is removed from the full screen, and the 3.5mm headphone hole, which was cut off at the earliest time, has also promoted the sales of a series of wireless earphones such as airplanes. In terms of charging port, although the wireless charging has reached the maximum of 30W fast charging, and has become the standard configuration of the flagship machine, in use, wireless charging is undoubtedly a more convenient experience, without plug-in and without cable obstruction, but why did not the scene like wireless headphones sell well?

To be exact, wireless charging technology has not been widely used in mobile phones. Although sharp launched the sh-13c wireless rechargeable mobile phone as early as April 2011, it was a pity that it was catching up with the wave of rapid iteration of smart phones. In addition, the technology at that time was not mature enough, and it soon faded out of people's vision. The real large-scale application of wireless charging started in 2017 when Apple introduced wireless charging technology on iPhone X and iPhone 8. In the following months, Huawei, Xiaomi and other manufacturers have successively launched mobile phones with wireless charging -- Huawei mate RS, Xiaomi mix 2S, etc. until today, wireless charging has become the standard configuration of the new generation of flagship computers.

At present, the wireless charging mode of mobile phones on the market is electromagnetic induction. The power transmission process consists of two groups of coils. The coils on the wireless charger are connected to AC power to generate magnetic field. The magnetic field acts on the "coil on the mobile phone" to form an electric current. The current is transmitted to the battery, which is the process of wireless charging. The current reverse wireless charging technology is also because the combination of battery and coil on the mobile phone enables the mobile phone to be a wireless charging power supply. With the same principle, the mobile phone can charge devices such as headphones.

In application, wireless charging has more advantages than wired charging.

First, make mobile phones safer. Compared with the traditional wired charging, wireless charging does not need to repeatedly plug and plug the charging line, which greatly reduces the wear of the exposed charging port of the mobile phone, so as to avoid the leakage and other unsafe factors caused by the wear of the original parts.

Secondly, wireless charging is more convenient to use. You can charge it when you put it down. You can understand this point without repeating it. Moreover, the current wireless charger can also charge different brands and models of mobile phones, with high compatibility and less trouble of finding suitable wiring.

Moreover, wireless charging also brings more possibilities for mobile phones. Take waterproof, if the future mobile phone is no longer equipped with charging port, the waterproof performance of mobile phone will be further improved.

But since wireless charging is safe and easy to use, why do you rarely see people around you using wireless charging? In fact, the reason is very simple, I think the biggest reason is, cough, there is no standard wireless charger for mobile phone

In terms of price, take Xiaomi as an example: 20W wireless charging set is 129 yuan, 30W charger is 199 yuan. Spending more than 100 yuan for a wireless charger doesn't seem attractive.

On the other hand, mobile phone heavy dependent people like to play while charging, and the current wireless charging can not be achieved. Of course, some netizens who firmly believe in "seeing is believing" believe that when they see the mobile phone plugged in, they will feel more secure...

The last important reason is that most people are deterred by the "hot" problem of early wireless charging technology. The reason lies in Apple's trade-off between user experience, design and cooling.

Some data show that in terms of user experience, Apple hopes that airpower can support charging multiple devices at the same time, which requires more induction coils. It is said that the airpower engineering version uses 22 coils, and a large number of coils have serious heating problems. Because of the lack of a better experience and design, apple finally chose to cancel the product.

The wireless chargers introduced by other manufacturers in the early stage have also brought a bad impression to a large number of users who are trying to taste fresh products because of the heating problem.

Fortunately, two years later, manufacturers have improved the heating problem by selecting low heating components and optimizing temperature control circuit, and wireless charging is gradually accepted by everyone. Moreover, compared with contact wireless charging, the "true wireless charging technology" is also coming.

Finally, here's a reminder for those who use wireless charging

Don't put the ID card, passport, bank card and other items with magnetic stripe on the wireless charger, which is likely to demagnetize!