A quadrature coupling type double-receiving-end unmanned aerial vehicle wireless charging system

By using an orthogonally coupled dual-receiver wireless charging system for drones based on the PT symmetry principle, the transmitter gain and receiver loss are dynamically adjusted. The receiver coil is embedded in the drone's landing gear groove, enabling efficient and reliable charging of drones in complex environments. This solves the problems of high cost, low efficiency, and high wind resistance in existing technologies, and improves the aerodynamic performance and transmission efficiency of drones.

CN224385153UActive Publication Date: 2026-06-19SOUTH CHINA UNIV OF TECH
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2025-05-26
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing wireless charging devices for drones suffer from high cost, low efficiency, large size and weight. External receiving coils increase flight drag, making it difficult to balance aerodynamic performance optimization and efficient energy transmission. In particular, the design and control methods for the orthogonal coupling structure of dual receiving ends are not yet mature.

Method used

A dual-receiver wireless charging system for drones based on the PT symmetry principle is adopted. By dynamically adjusting the balance between the transmitter gain and the receiver loss, the dual receivers are arranged in an orthogonal configuration, with the receiving coil embedded in the drone's landing gear groove. Frequency adaptive control is achieved by combining the transmitter's compensation capacitor voltage phase tracking technology.

Benefits of technology

It achieves stable output power and transmission efficiency in complex environments, reduces manufacturing costs, mitigates the impact of wind resistance, and improves anti-deviation capability and environmental adaptability, making it suitable for scenarios such as logistics distribution and field inspection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224385153U_ABST
    Figure CN224385153U_ABST
Patent Text Reader

Abstract

This utility model discloses an orthogonally coupled dual-receiver wireless charging system for unmanned aerial vehicles (UAVs), comprising a ground transmitter and a UAV receiver. The ground transmitter includes a DC power supply, a transmitter control circuit, a full-bridge inverter, a transmitter coil, and a transmitter compensation capacitor. The UAV receiver includes a UAV landing gear, first and second receiver coils, a rectifier bridge, first and second receiver compensation capacitors, a filter capacitor, and a load. The DC power supply, full-bridge inverter, transmitter compensation capacitor, and transmitter coil are connected in sequence. The transmitter control circuit is connected to the full-bridge inverter. The first and second receiver coils are respectively connected to the first and second receiver compensation capacitors. The first and second receiver compensation capacitors are connected to the rectifier bridge. The rectifier bridge, filter capacitor, and load are connected in sequence. The first and second receiver coils are connected to the UAV landing gear. When the coupling coefficient of the system reaches the critical coupling coefficient, the system has three real solutions, achieving output power and efficiency independent of the coupling coefficient.
Need to check novelty before this filing date? Find Prior Art