The core magnetic resonance medium and long distance wireless charging developed by Spurotin can successfully achieve wireless charging within one meter.
Generally about 0.9-2 meters high-power wireless charging transmission distance up to 5 meters wireless charging technology can be divided into low-power wireless charging and high-power wireless charging two ways. Low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, but ZTE's electric vehicle wireless charging method uses induction.
Currently known reports, the mostThe distance is 10 meters, using electromagnetic wave technology. The existing wireless charging technology uses magnetic field, electromagnetic wave, laser, ultrasonic and other energy transfer media. The 10-meter technology mentioned above, which uses electromagnetic waves as a medium, remains in the laboratory stage. At present, the commercial technology on the market is mainly magnetic field as the medium, which is divided into magnetic induction and magnetic resonance 2 technologies.
WiFi wireless charging: ten meters away Advantages: go with the charge, in line with the concept of wireless charging Disadvantages: charging object positioning is not easy, waste of power Ultrasonic wireless charging: effective range close to 5 meters Advantages: technology is very saferong>, if the parking space is outdoor, it needs to ensure that it can still work effectively even in harsh environments such as lightning, rain and snow, high temperature exposure, and low temperature freezing. Even indoors, you need to consider the possibility of being run over by wheels or trampled by pedestrians.
Wireless charging Expand the wireless charging range The principle is magnetic induction, the magnetic flux of the magnetic field must be very large, low charging efficiency, adverse to human health and interference with electronic equipment. And most of the cars don't have sensors.
Wireless charging is through an electromagnetic field. High power fast chargeNot the radiation risk of electricity. Only slow charge. It'll take a few hours. A few hours, save a few seconds of plugging in the socket why Expand the wireless charging range ? And wireless charging to improve efficiency requires precise berths. And wired charging actually requires very low parking accuracy, long wires ah. And there's plenty of room for improvement in wired charging. Like a plug that comes off easily without being crushed.
Electric vehicle charging needs to be fast, wireless charging power is difficult to meet the standard of wired charging, in addition, wireless car charging because it belongs to high-power electromagnetic field, safety is also questioned.
This depends on personal usage habits Expand wireless charging range ! It's all about personal subjective consciousness! This problem to no good debate, Expand the wireless charging range I think wireless charging is very convenient, perhaps I am a lazy person, do not like the action of the plug, put on to hear the charging prompt tone do not care about it, more convenient.
More and more mobile phones have begun to be equipped with wireless charging function, and the car must be equipped with corresponding functions to the owner slowly. Now the new modelHas slowly begun to be equipped with mobile phone wireless charging device, before the installation is not equipped with can choose to modify the nine-speed special car special car wireless charging device.
1, Adjust the antenna Angle according to the environment adjust the Angle of the antenna, it is recommended to place the antenna upright. Wireless expander to expand the signal using a wireless signal expander, placed in the weak signal area, through simple Settings to enhance the strength of the signal. WDS Bridge the extended signal and purchase a wireless router to bridge the current routeBy the device's wireless signal, the signal coverage can be extended.
2, Adjust the antenna Angle: According to your home environment, if it is a flat structure, it is recommended to place the antenna of the wireless router upright to optimize signal coverage. Use wireless signal extenders: Install wireless signal extenders in areas where wireless network coverage is weak, and enhance the strength and coverage of the signal through simple Settings.
3, the method of full coverage of large WIFI is as follows: Use the router bridge. The wireless bridge function of the router is to connect two routers through wireless signals to realize the network from oneTransmission from one location to another, thus achieving wider wireless signal coverage. Direct connection of two wireless routers: Direct connection of two wireless routers can effectively extend the coverage of wireless WiFi in the home.
2, the first is the charging efficiency, the current wired fast charge can achieve 30W-40W power, and even 55W ultra-high fast charge technology is under development, in contrast, wireless charging is limited by existing technology, the power is generally small, Apple is currently only 5WHowever, the speed of wireless charging cannot keep up with mainstream demand; The second is the price, the price of wireless charging is generally higher than that of wired charging.
3, at present, the fire is not up, and only high-end mobile phones are equipped with wireless charging function, you can imagine the cost is not low. For now, the application of low-end machines is obviously not yet ripe. Wireless charging technology does not use charging lines at all, but uses magnetic fields to charge devices, and is inspired by wireless power transmission technology.
4, maybe wireless charging this function sounds like a very powerful function, after all, wireless must be the trend in the futurePotential, but the current wireless charging is not to expand the range of wireless charging we imagine wireless charging.
Application environment Harsh wireless charging transmitter is generally arranged on the ground of the parking space, if the parking space is outdoor, you need to ensure that even in lightning, rain and snow, high temperature exposure, low temperature freezing and other harsh environment can still work effectively. Even indoors, you need to consider the possibility of being run over by wheels or trampled by pedestrians.
Wireless charging mobile phone popularity limited factors Wireless charging mobile phone Why rare? On the one hand, the inconvenience of its use form is an important reasonVegetarian. Although the early Nokia Lumia 920 has built-in Qi wireless charging technology, it requires a special case and base, which is not convenient to use. The base's size and charging distance limits also limit the user experience.
1, different from the conventional way of connecting the power cord to the phone to charge, it only needs to put the phone directly on the charging table to charge. As shown in Figure 1, "Magnetic flux occurs when alternating current flows through the coil of the charger (power output side), the magnetic fluxIt is connected to the coil of the smartphone (power receiving side) and flows through the inductive current. Using this principle of electromagnetic induction to charge.
2, followed by magnetic resonance, which is also a transmitting device and a receiving device combined. A frequency between the two devices needs to be tuned to the same stage, because only then can they resonate. But there is no way to commercialize this technology. 3, At present, the wireless charging technology used at home and abroad is mainly through the installation of energy receiving devices in the chassis of the vehicle, the installation of energy transmitter devices on the ground, the use of alternating power abortionGenerate alternating magnetic fields to achieve charging. This principle is similar to wireless charging of mobile phones, but there are some problems due to lower efficiency and higher cost, while it may generate ring current to the annular conductor in the car.
4, Wang Lifang: Wireless charging technology must be with the promotion and application of electric vehicles will have a market, we plan to carry out a demonstration operation of wireless charging technology for 20 electric vehicles in Beijing before 2016, and may be promoted from the taxi field, because the quality requirements in this field are relatively high.
5, since the popularity of wireless charging technology, smartphone manufacturers do notYou don't have to revisit your material choices. Wireless chargers' signals cannot travel through metals like aluminum, while polycarbonate and glass are the main solutions. However, how did Google achieve this feature in an aluminum body? The answer lies in the Pixel 5's unique design.