Three-coil structure wireless electrical energy transmission system
A wireless power transmission, three-coil technology, applied in current collectors, electric vehicles, electrical components, etc., can solve the problems of large energy loss and poor relative position flexibility of the coupling coil, so as to reduce energy loss, improve the intensity of load changes, improve The effect of efficiency
Inactive Publication Date: 2019-05-07
深圳市华禹无线供电技术有限公司
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[0005] The purpose of the present invention is to provide a wireless power transmission system with a three-coil structure, which aims to solve the problems of the existing wireless power transmission system with a double-coil structure, such as poor flexibility in the relative position of the coupling coils and large energy loss.
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] Such as figure 1 As shown, the embodiment of the present invention provides a three-coil structure wireless power transmission system, including a power transmitting device, a power receiving device and a load 8, and the power transmitting device includes a DC power supply 1, an inverter circuit 2, and an LC resonant circuit at the transmitting end 3 and the middle LC resonant circuit 4, the DC power supply 1 is used to provide the power required by the...
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The invention provides a three-coil structure wireless electric energy transmission system. The system comprises an electric energy emission device, an electric energy receiving device and a load. Theelectric energy emission device comprises a DC power source, an inverter circuit, an emission end LC resonant circuit and an intermediate LC resonant circuit, the output end of the DC power source isconnected with the input end of the inverter circuit, the output end of the inverter circuit is connected with the emission end LC resonant circuit, the electric energy receiving device comprises a receiving end LC resonant circuit, a rectifying circuit and a filtering circuit, the electric energy emission device is located between a source coil and an electric energy receiving coil, the source coil is mutually coupled with the electric energy emission coil, the electric energy emission coil is mutually coupled with the electric energy receiving coil, the output end of the receiving end LC resonant circuit is connected with the input end of the rectifying circuit, the output end of the rectifying circuit is connected with the input end of the filtering circuit, and the output end of the filtering circuit is connected with the load. The three-coil structure wireless electric energy transmission system can effectively improve the efficiency of the wireless electric energy transmission system.
Description
technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to a three-coil structure wireless power transmission system. Background technique [0002] With the development of electric vehicles and consumer electronic products, how to charge products conveniently and quickly has become an urgent problem to be solved. The traditional charging method requires wires to connect the power supply and electrical appliances, which has the disadvantages of easy wear and sparks; wireless power transfer (WPT) technology has attracted more and more attention because of its convenience and convenience without charging wires. This technology has great application prospects in many fields such as portable electronic equipment, electric vehicles, and implanted medical equipment. [0003] At present, magnetic coupling resonant wireless power transfer technology is considered to be the most effective and potential WPT technology, which us...
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IPC IPC(8): H02J50/12H02J50/70H02J7/02
Inventor 周洪张兴豪李佳李刚邓其军胡文山周东国
Owner 深圳市华禹无线供电技术有限公司