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Wireless power transmission system for charging battery

A technology for wireless power transmission and battery charging, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of low wireless transmission efficiency and high load impedance of smart bracelets, and achieve the effect of improving wireless power transmission efficiency

Inactive Publication Date: 2019-06-14
SUZHOU JIASHIGE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The small size of the battery and the receiving coil will bring high load impedance, resulting in low wireless transmission efficiency of the smart bracelet

Method used

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  • Wireless power transmission system for charging battery
  • Wireless power transmission system for charging battery
  • Wireless power transmission system for charging battery

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Embodiment Construction

[0020] The embodiments of the present invention will be further disclosed below in conjunction with the accompanying drawings to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0021] Such as figure 2 As shown, the present application discloses a wireless power transmission system for charging a battery 4, including a transmitter 1 and a receiver 2, wherein the transmitter 1 includes an inverter 11, and a transmitter coil 13 connected to the inverter 11 The receiving end 2 comprises two or more receiving end coils, a rectifier 27 connected with the two or more receiving end coils, and a DC / DC converter 28, one end of the DC / DC converter 28 The rectifier 27 is connected, and the other end is used to connect the battery 4, wherein the transmitting coil 13 is coupled with two or more re...

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Abstract

The invention discloses a wireless power transmission system for charging a battery. The wireless power transmission system comprises a transmitting end and a receiving end, the transmitting end comprises an inverter, and a transmitting end coil connected with the inverter, the receiving end comprises two or more receiving end coils, a rectifier connected with the two or more receiving end coils,and a DC / DC converter, one end of the DC / DC converter is connected with the rectifier, and the other end of the DC / DC converter is connected with the battery, wherein the transmitting end coil is respectively coupled with the two or more receiving end coils. The wireless power transmission system disclosed by the invention can improve the wireless power transmission efficiency.

Description

technical field [0001] The present invention relates to the technical field of wireless charging, in particular to a wireless power transmission system for charging batteries. Background technique [0002] Smart bracelets have been widely used to continuously monitor human body signals for traffic safety, health and medical research. Smart bracelets need to be worn for a long time to continuously monitor the signal. When charging is required, the charging must be interrupted, which brings inconvenience to the use. Wireless charging technology for smart bracelets makes charging more convenient and improves the user's charging experience. [0003] Such as figure 1 As shown, the traditional wireless power transmission system includes a transmitting end and a receiving end, and the transmitting end includes an inverter and a matching capacitor C at the transmitting end. TX , Transmitter coil L TX , the receiving end includes the receiving end coil L RX , receiving end matc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J50/40
Inventor 陈瑶
Owner SUZHOU JIASHIGE ELECTRONICS TECH CO LTD
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