Spring-loaded pogo pin Contact charging for smartwatches
It is obvious to all that smart watches/bands have gone through the market in the past few years, and only a few manufacturers are still doing smart wear. In the first quarter of 2020, global shipments of wearable devices were 72.6 million units, a year-on-year increase of 29.7%. Smartwatch Global shipments of smartwatches in the first quarter were 14.3 million units, a year-on-year increase of 12% compared to the first quarter of 2019. Among them, Apple ranks first, Huawei second, and Samsung third.
Among them, Apple and Samsung's smart watches are all wirelessly charged by magnetic suction, and only Huawei is still holding the magnetic suction contacts to charge. Therefore, many smartphone lovers who love smart wear are puzzled why Huawei does not use magnetic wireless charging.
What is the difference between traditional contact charging and wireless charging?
The principle of contact charging is very simple. The two positive and negative electrodes are exposed. The spring contact pin (pogo pin) of the charger and the contact (solid pin) on the watch are tightly attached by magnetic attraction, then the source is directly connected through the wire. Constantly charging the watch with electricity. The disadvantage is that the contacts on the charger and the back of the watch are not completely integrated, and stains are likely to remain after exercise. If it is not cleaned for many years, it will be blocked by dirt and cannot be charged. And if the sweat is not cleaned up in time after exercising, it is also easy to cause electric shock and corrosion, which in turn affects the charging efficiency. And the charging charger is not universal for all devices, and it is still very troublesome to run out of power at a critical moment.
So what are the advantages and disadvantages of using wireless charging?
Wireless charging directly solves the above problems, because the charging transmitter coil and receiver coil will not be in direct contact with the outside world, so there is no problem of contact oxidation and corrosion. However, the disadvantage is that the speed of wireless charging is much lower than that of direct contact charging, and the charging speed is not as fast as that of contact charging.
After a brief introduction to contact-type charging and wireless charging in this article, do you already know the advantages and disadvantages of the two? The biggest advantage of contact-type charging is that the charging speed is fast, because it is a physical connection, and the disadvantage is that it takes a long time to charge. Contacts will oxidize and cause poor contact, while wireless charging does not have this problem, wireless charging needs to go through a secondary electric energy conversion efficiency, which will be much lower, and the charging speed will be much slower.
The good news is that our self-developed unique coating technology has greatly delayed the oxidation of the pogo pins of contact charging and the surface of the electroplating layer of the contacts, thereby extending the service life and ensuring the efficiency of charging. At the same time, the use of contacts The trial charging solution can simplify the structure of the smartwatch, save the watch space, and lower the cost, which is also unmatched by wireless charging. This is why brands like Huawei also use contacts as a way to charge watches. If you need to know about our pogo pin charging solution, please contact us.
