Comparison of wireless charging and wired charging(二)

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四, convenient

Convenience has many aspects, including use, carrying, and experience.

1. Use Wired charging-under direct charging, the convenience of wired charging is not strong, but it is much better if it is used with a power bank. After all, the power bank can be placed in the bag and a cable connected to the mobile phone will do. Wireless charging-under direct charging, wireless charging is very convenient, just put the mobile phone on it, but the mobile experience is very poor, that is, put the power bank in the bag, vibration, etc., which makes the power bank and the mobile phone appear the only thing It will fail to charge or the efficiency will decrease.

2. Carry Wired charging-In terms of carrying, whether it is direct charging or mobile charging, wired charging has many advantages. Although there is an extra cable, it is relatively heavy, small and easy to carry. Wireless charging-one more device, wireless charging is still relatively disadvantageous in carrying, direct charging has an additional converter, which takes up more space. In mobile charging, due to the existence of the coil, the weight of the power bank is basically the same for the same size, but the capacity and conversion rate are reduced, that is, the specific power consumption that can be provided is greatly reduced.

3. Use experience Although I don’t agree with charging while using it, I have to say that most people will try to use a mobile phone while charging, and this is also a very important experience. Wired charging-the cable can be as long as it can be, and you can hold it at will, but it will drop the cable accidentally. Wireless charging-either hold it together or put it together. Some wireless charging supports short-distance charging, but it is basically about 10cm, and the charging efficiency is greatly reduced. Big and inconvenient. Some of them are wireless charging with slope charging, but they are limited to a shelf when watching videos.

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五, charging speed

The battery of mobile phones is becoming less and less, and the solution is to increase the charging speed. Wired charging-the current wired charging has two fast charging modes, one is high current charging, the other is high power charging under fast charging, charging for 5 minutes and two hours of talk is no problem. Wireless charging-The current charging speed of wireless charging is flawed, especially after comparing fast charging technology on mobile devices, the converted current is equivalent to 5v voltage 1-2a. There is not much advantage at the moment, and the charging speed is still Affected by the location of the mobile phone, charging efficiency will be compromised if you don’t pay attention. There are many technicians working hard to increase the coil voltage and the number of turns of the coil, but the accompanying interference, volume, and charging temperature are not significantly improved.

六. Cost

There is no doubt that cost is one of the biggest problems in promoting the market. Wired charging-low cost, multi-purpose in one line. The production cost of a charging cable is not high, and many people will directly ignore the cost of the data cable because of the comparative value, because of the comparative value, the cost is not What kind of. Wireless charging-cost superposition, not cost-effective. For the wireless charging device itself, the cost is much higher than the data cable, and in many cases, we still need the data cable, which means that when using wireless charging, we pay two costs (equipment, data cable) at the same time.

七, standards

The significance of the standard lies in replacement and universality, and the establishment of the standard is also one of the signs of mature technology. Wired charging-the standard is chaotic. In addition to the fixed three styles of interface standards, there are 7 major fast charging protocols that are well known as charging technology standards. There is also a USB fast charging protocol that is standing and useless, but due to the use of these standards All of them are big brands, and most of the products are universal, so replacement and universal are fairly convenient. Wireless charging-the industry standard has not yet formed. There are currently three technologies that are relatively mature, of which QI is the most widely used, and it is more promising to become a technical standard, but other wireless charging technologies are different, and there are big defects in replacement and generalization. , The charging efficiency of wireless charging under different technologies has dropped so much that it can’t even be used

八, fan

Some products, although not very useful, are very versatile and seem to be tall. Compared with wired charging, wireless charging is obviously more versatile, showing a sense of tall and high-tech. Whether it is used or not, it can be used as a decoration, not an empty line, and it looks good on a desk. It can even be integrated with the surrounding environment and furniture through special design and production, and has a very good application prospect in restaurants, cafes, etc. As for wired charging, it is too commonplace and not new. Some people even think that the rainbow lights with universal charging in the past are better than the current wired charging, and a small number of obsessive-compulsive disorder patients are not even messy, and the charging cable is thinly wound after each charge. . In terms of appearance, wireless charging can really shed 10 blocks of wired charging. After all, the appearance of wireless charging has a variety of designs, and how to design wired charging is still a line.

九, applications and prospects

At the moment, wired charging is widely used. It can be said that almost all electricity users are wired charging, but the prospects and limitations are also obvious. Large and small devices have insufficient power and inconvenient charging, especially large-scale electricity. Charging devices such as electric cars is really inconvenient and subject to many restrictions. However, although wireless charging has many limitations and deficiencies due to technical reasons, the application prospects are very promising, especially in ultra-long-distance power transmission (space power station project) and sports power transmission (photovoltaic highway), etc. There are great development prospects in such areas. So relatively speaking, wireless charging has more possibilities in the future. Written at the end- Wired charging has developed to the present. Although no one says that the potential is exhausted, there are obvious limitations in the development.

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In addition to the technology itself, there are more impacts from other aspects, such as wireless charging, such as wireless information transmission. The development of wireless charging has a history of more than ten years, but the speed of development and application has not been smooth, but it is undeniable that it has shown infinite charm to people.

So, readers, what method would you choose to charge?

 


Post time: Nov-09-2020