ZTE's wireless charging project is actually in the stage of innovation and development, and the basic task is still to "improve the five maturity", which should not be rushed to the commercial and forced to advance to the industrial operation stage. Instead, it should be: real breakthrough and real innovation in core technology. Charging power, charging efficiency and charging distance are the three core technologies of wireless charging.
Market application development bottleneck core wireless chargingThe technology is not perfect; The radiation region is difficult to achieve long-distance transmission; Long distance positioning requires too much hardware. Magnetic resonance height matching can be controlled small; The application scope is limited and has not been extended; Market factors and consumer psychology make developers reluctant to vigorously develop technology.
As a leader in China's new energy vehicle market, ZTE New Energy Co., Ltd. was founded in 2013, focusing on the research and development, production and sales of new energy vehicle charging and replacing equipment. Its strong R & D team continues to innovate and has successfully launched a number of models such as ZTE wireless charging wall box and wireless charging parking space! -- These productsThe mystery of charging! The primary part of wireless charging technology is usually located in the charger, and the magnetic core may be hidden inside the charger or battery. On the battery side, it's just a combination of an induction coil and a charging circuit. Due to the small gap between the battery and the charger, the leakage inductance of the transformer increases, making efficiency and battery radiation a challenge. Wireless charging technology still needs to be improved in terms of efficiency. In high-power applications, efficiency becomes critical.
The mystery of wireless charging: The exploration of electromagnetic induction and magnetic resonance with the rapid development of science and technology, noWire charging has penetrated into our daily lives, from consumer electronics to industrial equipment, and even the automotive field, and it is quietly changing our experience. This article will delve into two mainstream wireless charging technologies: electromagnetic induction and magnetic resonance, to give you a deeper understanding of this convenient way to transfer power.
Now, let's explore the secrets of these two technologies! Electromagnetic induction technology is the first generation of mobile phone wireless charging representative, through the primary coil to transmit a certain frequency of alternating current, the use of electromagnetic induction in the secondary coil to generate current, wireless transmission of energy. But, thisAt present, the technology can only achieve single-to-single, short-distance (within 1cm) charging, and the power is limited to 5 watts, which can not achieve single-to-multiple charging like WiFi.
The basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and then converted into a current to be transmitted to the intelligent terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. After passing through the power management module, the output direct current is converted into high-frequency alternating current through the 2M active crystal oscillator inverter to supply the primary winding.
Wireless charging Wireless charging mainly through the following three ways wireless charging program development : electromagnetic induction, radio waves, magnetic resonance Currently the most common wireless charging solution is wireless charging program development : Electromagnetic induction, which generates an electric current through primary and secondary coil induction to transfer energy from the transmission segment to the receiving end, is a solution provided by Splashpower UK, WildCharge USA and Fulton Innovation and other companies.
Another solution is to use the smart grid for wireless charging control, hand over the wireless charging management authority of electric vehicles, and control the wireless charging device by the smart grid.
At present, there are four wireless charging methods: electromagnetic induction charging, magnetic resonance charging, radio wave charging, and electric field coupling charging, and the technical scheme of each charging method is different. Electromagnetic wireless charging uses the induced magnetic flux generated between the inductive magnet on the power supply side and the electric side to convert the magnetic force into electrical energy and then transmit it. Abstract: Wireless charging is a new technologyCompared with the traditional method of charging with data lines, wireless charging can be transmitted to mobile phones without cables, which has the characteristics of safety and harmlessness, low power loss rate, and convenience.