Laser long-distance wireless charging device based on rotating emission lens

Abstract

The invention discloses a laser long-distance wireless charging device based on a rotating emission lens. The device uses a method of controlling the laser output direction by controlling the reflection angle of a mirror instead of laser movement in the prior art. The motor load and power consumption are reduced, the laser control precision is increased, and the size and weight of the laser long-distance wireless charging device based on a rotating emission lens are reduced. With laser as a carrier, the device has the characteristics of long transmission distance, high transmission efficiency, small receiver size, high charging speed and efficiency, adaptability to small electronic equipment, and the like. The beam density and wavelength of an 808nm semiconductor laser and a 1064nm diode pump solid-state laser adopted by the device match the energy gap width of gallium arsenide (GaAs) and indium gallium arsenic (InGaAs) photocell panels respectively. The device has the characteristics of high photoelectric conversion efficiency and low heat loss.

Description

technical field [0001] The invention relates to the technical field of wireless charging, in particular to a laser long-distance wireless charging device based on a rotating mirror. Background technique [0002] The development and progress of charging technology is currently concentrated in two aspects, one is the improvement of charging speed, and the other is the promotion and application of wireless charging. The improvement of the charging speed is mainly to increase the size of the charging current, and there is no major change in technology. There are many new technologies and inventions in wireless charging. At present, several main wireless charging methods mainly include solar energy, electromagnetic induction and magnetic resonance. It is difficult for the solar charging method to provide a large current output in a small volume, and it is difficult to meet the requirements of fast charging. Electromagnetic induction and magnetic resonance methods can provide h...

AI Technical Summary

Problems solved by technology

The space-borne laser wireless energy transmission system (CN201210593990.5) is a solution for the special requirements of the aerospace field. It has a complex alignment system, which is not only expensive, but also complicated to use, requiring high professional requirements for users.

At the same time, there is no relevant component to solve the problem of uneven laser spot in the solution, and it can only be used for laser irradiation of a single photocell, which cannot provide high-power energy

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