Wireless charging method and system and energy transmitting device

Abstract

Embodiments of the invention relate to the field of smart home, and disclose a wireless charging method and system, and an energy transmitting device. The method includes the steps of determining an installation position of an energy transmitting device according to a receiving position of an energy receiving device; adjusting an energy transmitting direction of the energy transmitting device and comparing energy receiving intensity display values corresponding to different energy transmitting directions to find an energy transmitting direction corresponding to the maximum energy receiving intensity display value; positioning the energy transmitting direction in the energy transmitting direction corresponding to the maximum energy receiving intensity display value; and adjusting the intensity of the transmitted energy according to the actual energy requirement of the energy receiving device, and transmitting energy by the adjusted intensity, wherein the energy receiving device, upon receiving the energy, converts the energy into electrical energy to charge a battery of the energy receiving device. The directional energy transmitting mode can effectively reduce the dissipation of energy in the propagation process and help to improve the conversion efficiency and practicality of long-range wireless charging.

Description

technical field [0001] Embodiments of the present invention relate to the field of smart home, and in particular to a wireless charging method, system and energy transmitting device. Background technique [0002] At present, there are two main commercial wireless charging methods, one is short-distance wireless charging, such as the Qi standard of the Wireless Power Consortium (WPC) that has been commercialized, and the A4WP standard established by Samsung and Qualcomm. However, these short-distance charging methods can only charge devices to be charged that are a few centimeters apart at most, and cannot be applied to occasions that require long-distance wireless charging. The other is long-distance wireless charging, but the inventors found that the long-distance wireless charging in the prior art has at least the following problems: the conversion efficiency is low, and it can only supply power to devices with low power consumption. For example, Powercast uses 915Mhz fre...

AI Technical Summary

Problems solved by technology

However, these short-distance charging methods can only charge the devices to be charged at a distance of a few centimeters, and cannot be applied to occasions that require long-distance wireless charging.

The other is long-distance wireless charging, but the inventor found that the long-distance wireless charging in the prior art has at least the following problems: the conversion efficiency is low, and it can only supply power to devices with low power consumption

For example, Powercast uses 915Mhz frequency to transmit 3 watts of energy, and the energy received by the antenna at a position of 10m (assuming that the antenna receiving gain is 6dBi) is only 0.011mW, which is basically meaningless, which is why this long-distance wireless charging cannot be truly Reason for popularity

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