Single-capacitor coupling mechanism and system for wireless charging of unmanned aerial vehicle, and unmanned aerial vehicle

A technology of wireless charging and coupling mechanism, which is applied in the direction of unmanned aircraft, charging stations, electric vehicle charging technology, etc., can solve the problems of weak anti-offset ability, heavy coupling mechanism quality, and high accuracy requirements, and achieve transmission power and transmission performance improvement, improved anti-offset capability, and simple structure

Pending Publication Date: 2021-04-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above defects, the first purpose of the present invention is to propose a single-capacitance coupling mechanism for wireless charging of drones, which mainly solves the problems of heavy coupling mechanism in the prior art, high alignment accuracy requirements, and anti-offset capability. Weakness and other issues

Method used

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  • Single-capacitor coupling mechanism and system for wireless charging of unmanned aerial vehicle, and unmanned aerial vehicle
  • Single-capacitor coupling mechanism and system for wireless charging of unmanned aerial vehicle, and unmanned aerial vehicle
  • Single-capacitor coupling mechanism and system for wireless charging of unmanned aerial vehicle, and unmanned aerial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment mainly provides a single capacitive coupling mechanism for wireless charging of drones, such as figure 1 , figure 2 As shown, including the transmitting end and the receiving end, the transmitting end is provided with a charging round table with a small top and a large bottom. The body of the charging round table can be made of light insulating material, and its side is formed by laying a metal film to form the primary emitter plate P 1 ; The receiving end is provided with a circular truncated receiving cover that cooperates with the charging circular platform. The body of the circular truncated receiving cover is also made of light insulating material, and its side is formed by laying a metal film to form a secondary receiving plate P 2 The primary emitter plate and the secondary receive plate form a single-capacitance electric field coupling mechanism to implement wireless charging. During specific implementation, insulation can be provided on the out...

Embodiment 2

[0041] Such as image 3 As shown, this embodiment provides a wireless charging system for drones, based on the single capacitive coupling mechanism for wireless charging provided in Embodiment 1, the transmitting end is also provided with a DC power supply, an inverter and a primary circuit Topological structure, the receiving end is also provided with a rectifying and filtering device and a rechargeable battery pack, one of the input terminals of the rectifying and filtering device is directly connected to the receiving plate of the secondary side, and the other is directly connected to the metal sheet. In this example, the inverter adopts a half-bridge inverter, and the topology of the primary side circuit includes the resonant inductor L 1 , Resonant inductance L 2 , Resonant inductance L 3 , Resonant capacitance C 1 and resonant capacitor C 2 , the resonant capacitor C 1 , Resonant inductance L 2 and resonant capacitor C 2 Constitute a T-type CLC resonant network, r...

Embodiment 3

[0062]Provide a drone that can adopt figure 1 The installation structure shown uses the wireless charging system provided in Embodiment 2 to perform wireless charging.

[0063] Small unmanned aerial vehicles are often used in civilian applications and have a wide range of uses, such as line inspection, photography, monitoring data, etc. Generally speaking, in order to increase the battery life, small UAVs have a lighter load and a smaller battery capacity, and usually require a charging power of about 100 watts.

[0064] In order to verify the effect that the present invention mentions, also according to below image 3 The shown ECPT system topology establishes the simulation circuit model of the system on the LT-spice simulation platform. Set R according to the battery parameters of the small drone L The value of E is set according to the formula (6) and the output power requirement of the small UAV battery dc and the value of k, set C according to the UAV's appearance co...

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Abstract

The invention provides a single-capacitor coupling mechanism and system for wireless charging of an unmanned aerial vehicle and the unmanned aerial vehicle, the coupling mechanism comprises a transmitting end and a receiving end, the transmitting end is provided with a charging circular truncated cone with a small upper part and a large lower part, and the side surface of the charging circular truncated cone forms a primary side transmitting polar plate by laying a metal film; the receiving end is provided with a circular-truncated-cone-shaped receiving cover matched with the charging circular truncated cone, and the side face of the circular-truncated-cone-shaped receiving cover forms a secondary side receiving polar plate by laying a metal film. And the primary side transmitting polar plate and the secondary side receiving polar plate form a single-capacitor electric field coupling mechanism to realize wireless charging. In a system formed by the system, the transmitting end is further provided with a direct-current power supply, an inverter and a primary side circuit topological structure, and the receiving end is further provided with a rectifying and filtering device and a rechargeable battery pack. The single-capacitor coupling mechanism has the advantages that the structure is simple, the weight is light, the coupling capacitance value can be greatly improved, deviation can be corrected through the gravity of the unmanned aerial vehicle, the anti-deviation capacity of the system is improved, and meanwhile the requirements for frequent load switching and portability of the small unmanned aerial vehicle can be met.

Description

technical field [0001] The invention relates to wireless energy transmission technology, in particular to a single capacitive coupling mechanism and system for wireless charging of drones and drones. Background technique [0002] An unmanned aircraft is an aircraft that is controlled by radio real-time remote control or its own pre-stored programs, has the ability to carry multiple functional devices to perform various tasks, and can be used multiple times. Aerial Vehicle is abbreviated as UAV). [0003] Due to the advantages of small size, flexible use, and strong adaptability, UAVs are widely used in surveying, reconnaissance, and early warning, covering scientific research, civil, and military fields. Among the various indicators for evaluating the performance of drones, one of the important indicators is the endurance of drones, and long range is also one of the main development trends of drones in the future. From the energy point of view, there are two main ways to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/12B64C39/02
CPCB60L53/12B64C39/02B60L2200/10B64U50/19B64U10/10Y02T10/70Y02T10/7072Y02T90/14
Inventor 苏玉刚刘哲邓仁为钱林俊戴欣唐春森王智慧孙跃
Owner CHONGQING UNIV
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