Resonating Drone Motor with Speed Reducer for Efficient Flight

The patent employs resonating mechanisms that exploit the natural resonant frequency of the wing-motor-spring system. By operating at resonance, the system achieves high-amplitude beating motion with minimal energy input, allowing small motors to deliver effective power without requiring large physical size. The resonance condition creates a feedback loop where the wing's inertia and the spring's elasticity work together to sustain oscillations efficiently.

The patent changes the operational parameters by operating motors at resonant frequencies rather than at their maximum power points. This parameter change allows the system to achieve high mechanical output with small motors by leveraging the resonant amplification effect, where the mechanical system's natural frequency matches the motor's operating frequency, maximizing efficiency and minimizing motor size requirements.

The resonating mechanism transforms the motor's rotational motion into reciprocating wing motion at the system's natural frequency. This vibration-based approach allows small motors to operate continuously at their resonant frequency, achieving sustained high-amplitude beating without requiring large motors. The resonance effect amplifies the mechanical output, ensuring that even small motors utilize their power efficiently for the duration of flight.

The system employs periodic reciprocating motion of the wings at resonant frequency, where the motor delivers power in a cyclic manner synchronized with the wing's natural oscillation period. This periodic action at resonance allows the motor to operate at optimal efficiency points continuously, maximizing power utilization over time rather than requiring peak power delivery, thereby improving both maneuverability and energy efficiency.

The patent uses the resonating mechanism to amplify the beating amplitude through resonance. The natural frequency of the wing-spring-motor system is tuned to match the motor's operating frequency, creating a self-reinforcing oscillation that achieves high amplitude without requiring large motors. The mechanical resonance effectively multiplies the force output, allowing small motors to generate large beating amplitudes.

The coil spring acts as an elastic energy storage element that counterbalances the motor's inertia and the wing's mass. During the reciprocating motion, the spring stores and releases elastic energy, effectively counteracting the gravitational and inertial forces. This allows small motors to achieve high-amplitude beating by leveraging the spring's elastic counterweight effect rather than relying on motor mass.