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Wireless charging method based on wireless energy transmission system

A technology of wireless energy transmission and wireless charging, applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve the problems of easy aging, unsafe and inconvenient charging methods, achieve wide application, improve the level of automation and intelligence, and overcome unsafe effect

Active Publication Date: 2015-04-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wireless charging method based on a wireless energy transmission system in order to solve the problems of unsafe, aging, and inconvenient problems in the existing charging methods

Method used

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  • Wireless charging method based on wireless energy transmission system
  • Wireless charging method based on wireless energy transmission system

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specific Embodiment approach 1

[0016] Specific implementation mode one: the following combination Figure 1-Figure 2 Describe this embodiment, the wireless charging method based on the wireless energy transfer system described in this embodiment, the wireless charging method is realized based on the wireless energy transfer system, the wireless energy transfer system includes an energy transmitting device, an energy receiving device and a controller, and the energy The transmitting device is connected to the power supply, the energy receiving device is connected to the load, the energy transmitting device and the energy receiving device are wirelessly connected through a coupling mode, the collection signal input end of the controller is connected to the load, and the control signal output end of the controller is connected to the energy receiving device;

[0017] The specific process of this method is:

[0018] Step 1. The wireless energy transmission system charges the load with the initial charging curre...

specific Embodiment approach 2

[0026] Specific embodiment two: this embodiment further explains embodiment one, in the process of obtaining the resonant frequency of the system described in step 2, the controller performs an open-loop experimental test, and determines the frequency modulation range of the resonant frequency according to the open-loop experimental test results.

specific Embodiment approach 3

[0027] Embodiment 3: In this embodiment, Embodiment 1 is further described. The threshold in step 6 is the voltage value when the output current is 0A.

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Abstract

The invention relates to a wireless charging method, in particular to a wireless charging method based on a wireless energy transmission system to solve the problems that an existing charging method is not safe and not convenient to use, and aging is prone to occuring. The wireless charging method includes the specific steps that initial charging current is used for charging a load according to the initial work frequency; a controller obtains the resonant frequency of a system according to the load and obtains reference charging current according to the resonant frequency; an energy receiving device is controlled to conduct constant-current charging on the load according to the reference charging current; whether the charging voltage is smaller than the upper limit of the reference charging current or not is judged, and if not, a BUCK circuit in the energy receiving device reduces input direct voltage and conducts constant-voltage charging on the load; whether the input direct voltage is larger than the threshold value or not is judged, and if not, the resonant frequency is adjusted to conduct trickle charging on the load. The wireless charging method is used for wireless charging.

Description

technical field [0001] The invention relates to a wireless charging method. Background technique [0002] Most of the electronic devices currently on the market are charged by cables. If users use multiple electronic devices with different charging specifications, they must keep various types of cable chargers. For example, if the charger is lost, the charger needs to be repurchased to charge the corresponding electronic device. Contents of the invention [0003] The object of the present invention is to provide a wireless charging method based on a wireless energy transmission system in order to solve the problems of unsafe, aging and inconvenient problems in existing charging methods. [0004] The wireless charging method based on the wireless energy transmission system of the present invention, the wireless charging method is realized based on the wireless energy transmission system, the wireless energy transmission system includes an energy transmitting device, an ene...

Claims

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Application Information

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IPC IPC(8): H02J7/02
CPCH02J5/005H02J7/025H02J7/045
Inventor 朱春波张剑韬魏国程志远毛世通宋凯逯仁贵
Owner HARBIN INST OF TECH