Multi-transmission single-receiving wireless energy transmission device
A wireless energy transmission, single-receiving technology, applied in the direction of circuit devices, electrical components, electromagnetic wave systems, etc., can solve the problem of excessive load on the transmitter, reduce the transmission power, improve the efficiency of wireless energy transmission, and increase the transmission power Effect
Inactive Publication Date: 2012-09-12
SOUTHEAST UNIV
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Problems solved by technology
[0003]Technical problem: The purpose of this invention is to provide a wireless energy transmission device with multiple transmission and single reception, which can solve the problem of overloading a single transmitter in high-power wireless charging. The big problem is that multiple transmitters provide wireless energy to the receiver at the same time to reduce the design difficulty of a single transmitter, and can further greatly improve the transmission efficiency when the total output power is increased.
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[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] see figure 1 , the multi-transmitting and single-receiving wireless energy transmission device provided by the present invention includes at least two transmitting devices and one receiving device;
[0026] Each transmitting device includes a high-frequency power source, a transmitting coil Lt, and a transmitting impedance matching network. One side of the transmitting impedance matching network is connected to both ends of the high-frequency power source, and the other side is connected to both ends of the transmitting coil Lt. connection; the transmitting coil Lt includes a high-frequency parasitic resistance Rpt;
[0027] The receiving device includes a receiving coil Lr and a load RL, and also includes a receiving impedance matching network, one side of the receiving impedance matching network is connected with both ends of the receiving coil Lr, and the oth...
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The invention provides a multi-transmission single-receiving wireless energy transmission device, which comprises at least two transmission devices and a receiving device, wherein each transmission device comprises a high-frequency power source, a transmission coil Lt and a transmission impedance matching grid; one side of the transmission impedance matching grid is connected with the two ends of the high-frequency power source, and the other side of the transmission impedance matching grid is connected with the two ends of the transmission coil Lt; the transmission coil Lt comprises a high-frequency parasitic resistor Rpt; the receiving device comprises a receiving coil Lr, a load RL and a receiving impedance matching grid; one side of the receiving impedance matching grid is connected with the two ends of the receiving coil Lr, and the other side of the receiving impedance matching grid is connected with the load RL; and the receiving coil Lr comprises a high-frequency parasitic resistor Rpt. According to the multi-transmission single-receiving wireless energy transmission device, the wireless energy transmission distance can be prolonged remarkably, and long-distance wireless energy transmission becomes possible.
Description
technical field [0001] The present invention relates to a multi-transmission and single-reception wireless energy transmission device, in particular to a device for high-efficiency wireless energy transmission from multiple transmitters to a single receiver, which can be applied to low-power, medium-power and high-power wireless charging , to achieve higher efficiency and higher power charging characteristics than traditional single-single-single-receiving wireless charging at the same distance, while reducing the load on a single transmitter and reducing the design difficulty of high-power wireless charging devices . Background technique [0002] Wireless charging is a very popular research direction in recent years, from the early inductive electric toothbrushes and electric shavers that can charge wirelessly to the later Powermat ("wireless charging board") wireless charging kit that can charge mobile phones, and then In the later Palm pre (Pear Smart Wireless Charging M...
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IPC IPC(8): H02J17/00H02J50/12
Inventor 崔铁军刘硕陈林辉凌昕彤陈维舟谭杭波周永春
Owner SOUTHEAST UNIV