How wireless technology is changing the world

How does wireless charging technology work?

Before we read more articles about this technology, it is important for us to understand how it works. Therefore, in essence, wireless charging is mainly based on the principle of inductive power transfer (IPT) or magnetic resonance (MR). This means that the energy from the charger is transmitted to the device through a receiver placed at the back through electromagnetic induction. Using an induction coil, the charger generates an electromagnetic field, and the coil on the receiver converts it back to the power source. To further understand, let us look at some wireless charging methods.

Resonant charging-This method is used to charge large batteries such as robots, vacuum cleaners, computers or electric cars, which are known to consume a lot of electricity. In resonant charging, the coils in the device and the power supply are tuned to the same electromagnetic frequency.

Inductive charging-Inductive wireless chargers are used to charge medium-sized devices, such as smartphones, tablets, kitchen appliances, and music players. In this charging method, the device is placed on a conductive or wireless charging pad and plugged into a power outlet.

Wireless charging-This charging method is suitable for small battery devices and consumes only low power, including medical equipment, smart watches, music players, wireless keyboards, wireless mice and other devices. The receiver and transmitter in the device are configured to the same frequency, allowing the device to be charged via radio waves.

The importance of wireless charging in the business world

In just a few decades, both the Internet and mobile phones have become wireless. Now, charging is slowly changing and becoming wireless. Although wireless charging technology is still in its infancy, it is expected to have tremendous development in the next few years. At present, this technology is being applied to a series of practical applications, including notebook computers, smart phones, wearable devices, and even electric cars. The purpose of using this technology in all these areas is to reduce the use of cables.

The manufacturing, healthcare, and automotive industries are all embracing wireless charging technology because it is expected to improve mobility and enable Internet of Things (IoT) devices to be charged over long distances. More importantly, because the technology provides convenience to users and ensures safe charging in hazardous environments, the wireless charging market is expected to grow further. It is estimated that by 2026, the market's revenue will exceed 30 billion U.S. dollars.

The need for thermal management in wireless charging

There is no doubt that wireless charging has proven to be easier, faster, and more convenient, but people who use this technology are facing a challenge-severe temperature fluctuations. These fluctuations can lead to poor performance, which in turn leads to shortened battery life. Therefore, many manufacturers are considering relying on thermal performance. Therefore, in the near future, there will be strong progress, allowing more power and less frequent charging. Manufacturers will put their main focus on achieving battery safety and optimal efficiency. Relying on methods such as phase change materials, air cooling, fin cooling, and liquid cooling will ensure that all of this can be achieved.

Learn about wireless electric vehicle charging

Frankly speaking, the future of mobility, especially in urban areas, is electric, autonomous, connected, and wireless. As automakers headed by Tesla continue to introduce electric and hybrid vehicles to the market, the automotive industry is now working on the next big thing-wireless electric vehicle charging. In fact, in recent months, the development momentum of wireless charging systems has increased significantly. This major development is attributed to the convenience of wireless charging methods and the popularity of this method in recent years. Even the British government expressed interest in this. The Minister of Transport announced plans to test wireless charging technology on electric vehicles and invested 3.4 million pounds in the project. This statement alone is enough to change electric transportation in the United States. If everything goes according to plan, taxis in all major cities will benefit greatly, because wireless charging allows multiple taxis to be charged at the same time, making it easier and more convenient for drivers to charge, which in turn will reduce chaos on the street .

In addition, as the British government is committed to a clean environment, it is encouraging more and more citizens to switch from petrol vehicles to electric vehicles, which will go a long way in ensuring that emissions are reduced. Of course, this will lead to more people choosing electric vehicles, which will allow new wireless charging technologies to be launched publicly for public use.

In the future, wireless charging is expected to be based on Dynamic Electric Vehicle Charging (DEVC), which will allow cars to be charged while driving. This will undoubtedly bring a huge boost to travel, because drivers don’t have to wait in line for their cars to recharge. In addition, this DEVC technology can also reduce the weight of cars because they will no longer require the massive energy storage that they have today.

The future trend of wireless technology

Wireless charging aims to expand the range and mobility of device users. Our previous technology can only allow you to charge the device a few centimeters away from the charging tool. Recently, this distance has increased a bit, only a few centimeters. If you follow this trend, coupled with the continuous advancement of technology, you may be able to charge your device within a few meters.

In addition, the commercial sector continues to introduce new and innovative wireless charging applications. Restaurant tables can charge smartphones and other devices, office furniture with integrated charging functions, not to mention kitchen counters that can charge coffee machines, these are some of the applications you look forward to launching in the near future.

【Editor in charge: Hua Xuan TEL: (010) 68476606】