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Wireless charging foreign matter detection system, wireless charging system and charging method

A technology of wireless charging and foreign object detection, which is applied in the direction of battery circuit devices, current collectors, electric vehicles, etc., can solve the problems that the energy transmitting end and the energy receiving end affect the energy transmission efficiency and power, and achieve high transmission efficiency and transmission power. Avoidance of transmission efficiency, avoidance of abnormal conditions

Active Publication Date: 2020-11-10
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem in the prior art that there are foreign objects at the energy transmitting end and the energy receiving end that affect the energy transmission efficiency and power, and provide a robot wireless charging system and method

Method used

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  • Wireless charging foreign matter detection system, wireless charging system and charging method
  • Wireless charging foreign matter detection system, wireless charging system and charging method
  • Wireless charging foreign matter detection system, wireless charging system and charging method

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0041] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a wireless charging foreign matter detection system, a wireless charging system and a charging method, and belongs to the technical field of wireless charging. The method comprises the steps: detecting and judging whether metal foreign matter exists or falls between a transmitting coil and a receiving coil in wireless power transmission or not, giving an alarm in time, controlling power transmission, performing positioning and size judgment on a metal foreign matter, and properly evaluating the metal foreign matter. According to the invention, a metal foreign matter detection unit is arranged on an energy emission unit, the metal foreign matter detection unit can detect the size and position of the metal foreign matter through the magnetic coupling relation betweenthe metal foreign matter and a detection coil, preliminary evaluation is conducted on the metal foreign matter, and the metal foreign matter is removed through a foreign matter removing unit; the transmission efficiency of the wireless charging process is prevented from being influenced by metal foreign matters, and the heating problem caused by eddy current is avoided; if elimination fails, an alarm is given out to stop charging, so abnormal conditions are avoided.

Description

【Technical field】 [0001] The invention belongs to the technical field of wireless power transmission, and relates to a wireless charging system, in particular to a robot wireless charging system and method. 【Background technique】 [0002] With the continuous development of wireless power transmission technology, this technology has been applied in more and more occasions relying on its unique advantages such as portability and safety. The application fields range from medical equipment to household electrical equipment, special industrial applications, and scientific research applications. , the transmission power ranges from a few milliwatts to thousands of watts, and the transmission distance ranges from less than one millimeter to more than ten centimeters or even thousands of meters. We can see the wireless power transmission technology, which is constantly changing our way of life. [0003] The existing wireless power transmission technology mainly uses resonant magneti...

Claims

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Application Information

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IPC IPC(8): H02J50/60H02J50/70H02J50/12H02J50/90H02J7/00
CPCH02J50/60H02J50/70H02J50/12H02J50/90H02J7/007182
Inventor 徐翀黄晓华魏斌王松岑吴晓康蒋成徐锦星于杰
Owner CHINA ELECTRIC POWER RES INST
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