High-power wireless power supply coupling mechanism and its parameter design method
A technology of wireless power supply and coupling mechanism, applied in circuits, inductors, current collectors, etc., can solve the problems of inability to meet high-power applications, increased system loss, large inductance, etc., to meet high-power wireless power supply applications, The effect of high power density and improved power capacity
Active Publication Date: 2021-11-23
NINGBO POWER SUPPLY COMPANY STATE GRID ZHEJIANG ELECTRIC POWER +2
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Problems solved by technology
The double-layer DD coil is made of a wire wound into a coil, and its inductance is large. When high power is applied, the voltage at the coil port will be too high and the system loss will increase.
[0004] For the application of high-power wireless power transmission, due to the limitations of high-frequency and high-power power electronic devices in terms of power capacity and frequency, traditional single-transmitter and single-pickup systems often cannot meet high-power applications
Method used
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[0041] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.
[0042] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.
[0043] This embodiment provides a high-power wireless power supply coupling mechanism, referred to as BLQDD coil (a bilayerquadrature (BLQ)DD), such as figure 1 As shown, the transmitting mechanism corresponds to the transmitting end, and the picking mechanism corresponds to the receiving end. It can be seen from the figure that both the transmitting mechanism and the picking mechani...
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Abstract
This application discloses a high-power wireless power supply coupling mechanism and its parameter design method. The coupling mechanism includes a transmitting end and a receiving end. The transmitting end includes a first DD-shaped coil and a second DD-shaped coil, and the two overlap each other The receiving end includes a third DD-type coil and a fourth DD-type coil, and the two are overlapped and arranged orthogonally. The effect is: simple structure, convenient parameter design, decoupling between coils, high power density, and can be applied to a dual-transmission and dual-pickup system to increase power capacity, thereby meeting high-power wireless power supply applications.
Description
technical field [0001] The invention relates to the technical field of wireless charging, in particular to a high-power wireless power supply coupling mechanism and a parameter design method thereof. Background technique [0002] Magnetic Coupling Wireless Power Transfer (MC-WPT) refers to the use of the magnetic field coupling principle to realize the non-electrical connection transmission of electric energy from the power supply end to the electric equipment end. The technology is used in a wide range of electronic devices, medical implants, robotics, underwater equipment, and wirelessly powering electric vehicles. [0003] The coupling mechanism is a key part of the energy transmission of the MC-WPT system. The toroidal coil has the advantages of simple structure and convenient winding. It is a coil structure widely used in the MC-WPT system earlier. However, the toroidal coil has disadvantages such as short energy transfer distance and weak anti-offset ability. In orde...
Claims
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IPC IPC(8): H02J50/12H02J50/40H02J50/70H01F38/14H02J7/02
CPCH01F38/14H02J7/02H02J50/12H02J50/40H02J50/70
Inventor 凌荣光王汉丰刘羽钟永颉吴刚卓璐珊许巍闻铭冯天旭何磊杰沈寅星王智慧唐春森左志平
Owner NINGBO POWER SUPPLY COMPANY STATE GRID ZHEJIANG ELECTRIC POWER