Title:
UNMANNED AERIAL VEHICLE HAVING DUAL COAXIAL PROPELLERS
Document Type and Number:
WIPO Patent Application WO/2021/078204
Kind Code:
A1
Abstract:
An unmanned aerial vehicle having dual coaxial propellers. The unmanned aerial vehicle comprises a protective housing (1), a propeller assembly (2), a first balance ring (3), a second balance ring (4), a mounting rod (5), a drive assembly (6), and a control surface assembly (7). The protective housing (1) is a hollow honeycomb structure; the propeller assembly (2) is disposed in the protective housing (1) and comprises two coaxially arranged propellers; the rotation directions of the two propellers are opposite; the first balance ring (3) is rotatably connected to the protective housing (1); the second balance ring (4) is rotatably connected to the first balance ring (3); both ends of the mounting rod (5) is rotatably connected to the second balance ring (4); the drive assembly (6) is disposed on the mounting rod (5); the drive assembly (6) is connected to the propeller assembly (2) to drive the propeller assembly (2) to rotate; the control surface assembly (7) is connected to the mounting rod (5) and is located below the drive assembly (6); and the control surface assembly (7) is configured to adjust the flight attitude of the unmanned aerial vehicle having dual coaxial propellers. In the unmanned aerial vehicle having dual coaxial propellers, not only can the probability of blade damage be reduced, but the aerodynamic efficiency and flight stability of the unmanned aerial vehicle can be ensured.
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Inventors:
DU YUANYUAN (CN)
Application Number:
PCT/CN2020/122913
Publication Date:
April 29, 2021
Filing Date:
October 22, 2020
Export Citation:
Assignee:
AUTEL ROBOTICS CO LTD (CN)
International Classes:
B64C1/06; A63H27/133; B64C1/08; B64C9/06; B64C9/30; B64C27/10
Foreign References:
| CN211468768U | 2020-09-11 | |||
| CN110203386A | 2019-09-06 | |||
| CN110194259A | 2019-09-03 | |||
| CN101934858A | 2011-01-05 | |||
| CN209225393U | 2019-08-09 | |||
| CN109367762A | 2019-02-22 | |||
| US20180057135A1 | 2018-03-01 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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