Wireless charging receiving system and method

A wireless charging and receiving system technology, applied in current collectors, electric vehicles, electrical components, etc., can solve the problems of reducing antenna gain, low receiving efficiency, affecting efficiency, etc., to improve absorption rate, improve efficiency, and reduce reflection phenomenon. Effect

Inactive Publication Date: 2017-08-18
郑州携能通信技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, affected by the basic limitations of the antenna (such as the impedance mismatch caused by the mutual coupling between the array elements and the obvious change of the receiving performance with the incident angle, etc.), the

Method used

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  • Wireless charging receiving system and method
  • Wireless charging receiving system and method
  • Wireless charging receiving system and method

Examples

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Example Embodiment

[0037] Example 1

[0038] See figure 1 , which shows a schematic diagram of the logical structure of the wireless charging receiving system provided by the present application. The wireless charging receiving system includes: a DC-DC conversion module 11 , at least one metasurface unit group 12 and at least one rectification module 13 .

[0039] The dielectric constant and magnetic permeability of the metasurface unit group 12 satisfy the condition that the wave impedance of the microwave wireless signal in the metasurface unit group 12 matches the wave impedance in the air.

[0040] Since the wave impedance of the medium is determined by its permittivity and magnetic permeability, in this embodiment, the permittivity and magnetic permeability of the metasurface unit group 12 are set so that it can meet the requirements of microwave wireless signals in the metasurface. The condition that the wave impedance in the unit group 12 matches its wave impedance in the air ensures tha...

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Abstract

The invention provides a wireless charging receiving system and method. The wireless charging receiving system comprises a direct current-direct current conversion module, at least one metasurface unit group and a rectifying module; the dielectric constant and the magnetic conductivity of the metasurface unit group satisfy a condition that the wave impedance of a microwave wireless signal in the metasurface unit group is matched with that in the air; the metasurface unit group is used for receiving the microwave wireless signal and converting the microwave wireless signal into a high-frequency current signal; the rectifying module is used for converting the high-frequency current signal into a direct current signal; and the direct current-direct current conversion module is used for converting the direct current signal into a direct current signal which can be used directly by a load. By virtue of the abovementioned mode, the absorptivity of the microwave wireless signal is improved, and efficiency in converting the microwave wireless signal into the direct current signal which can be used directly can be further improved.

Description

technical field [0001] The present application relates to the field of wireless charging and communication, in particular to a wireless charging receiving system and method. Background technique [0002] At present, the commonly used charging method is wired charging, that is, the charging is completed through the connection of power lines, signal lines and other wires. inconvenient. In order to solve the problems existing in the wired charging method, the wireless charging application was born. Among them, in the wireless charging method, a microwave wireless charging system is generally used to realize medium and long-distance wireless charging, so as to meet the needs of users for medium and long-distance charging. [0003] In the current microwave wireless charging system, the receiving end uses an antenna to receive microwave wireless signals in the air, and then converts the received microwave wireless signals into DC signals for utilization. However, affected by th...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J50/20
CPCH02J7/025
Inventor 罗文宇郝景凯
Owner 郑州携能通信技术有限公司
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