Tiltable Wing Cable Routing to Prevent Rotation-Induced Winding
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Solution Overview
Problem
The power cables in tiltable unmanned aerial vehicles are prone to being wound around and pulled apart due to the rotation of the tilting motor, compromising their functionality and reliability.
Innovation Solution
A tiltable wing design featuring a power device mounted on the wingtip, a cable connected to a rotating shaft with through holes, and a driving mechanism that allows the wingtip to rotate with the shaft as an axis, enabling the power device to switch between horizontal and vertical states, while the cable is kept separate from the driving mechanism to prevent winding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cable is disposed along the rotating shaft of the tilting motor to supply power to the power device, then the power supply connection is maintained, but the cable is wound around and folded continuously during rotation, causing it to be pulled apart and compromising reliability
Solution Approach 1:
The cable is extracted from the rotating shaft area and routed through a guide hole in the axial direction to extend into the wing body, separating the cable path from the rotation zone. This removes the harmful winding action from the system while maintaining power supply connection.
Solution Approach 2:
The guide hole in the rotating shaft acts as an intermediary structure that allows the cable to pass through the rotation axis without being wound around. The cable extends through this intermediary pathway, preventing direct contact with the rotating surface while maintaining connection.
2Device complexity
If the cable is disposed along the rotating shaft to maintain power connection, then the structure is compact, but the cable is folded and unfolded continuously, leading to cable separation
Solution Approach 1:
The cable routing is extracted from the conventional along-shaft disposition and repositioned to extend through the guide hole into the wing body. This extraction eliminates the folding-unfolding motion while maintaining a relatively simple structural implementation.
3Adaptability or versatility
If the tilting motor rotates to enable vertical take-off and hovering, then the aircraft achieves versatile flight capabilities, but the cable along the rotating shaft is wound around and pulled apart
Solution Approach 1:
The cable is extracted from the rotation zone by routing it through the guide hole in the axial direction, allowing the tilting motor to rotate freely for achieving vertical take-off and hovering capabilities without the cable being wound around during the rotation motion.
Solution Approach 2:
The guide hole serves as an intermediary pathway that permits the cable to remain stationary relative to the rotation, enabling the tilting motor to achieve versatile flight modes while preventing cable winding through the mediating structure.
Data Source
AI summary
Embodiments of the present disclosure relate to the technical field of unmanned aerial vehicles, in particular to a tiltable wing and an unmanned aerial vehicle. The tiltable wing includes a wing body, a wingtip, a power device, a cable, a rotating shaft and a driving mechanism. The power device is mounted on the wingtip; one end of the cable is connected to the power device, the rotating shaft is rotatably connected to the wing body and the wingtip, respectively, a through hole is disposed in an axial direction of the rotating shaft, and the other end of the cable passes through the through hole and extends to the inside of the wing body; the driving mechanism is used for driving the wingtip to rotate with the rotating shaft as an axis; and the power device is switchable between a first preset position and a second preset position relative to the wing body, so that the power device is switched between a horizontal state and a vertical state.