An electric water-air dual-purpose propeller

Abstract

The invention belongs to the technical field of thrusters, in particular to an electric water-air dual-purpose thruster. Including outer rotor motor, rim motor, propeller, stator bracket, one-way clutch mechanism and propeller mounting frame, wherein the outer rotor motor is connected to the propeller mounting frame through the stator bracket, the output shaft of the outer rotor motor is connected to the propeller, and the rim The motor is sleeved on the outside of the propeller and connected to the propeller through a one-way clutch mechanism; when working in the air, the outer rotor motor drives the propeller to rotate, and the one-way clutch mechanism is separated from the propeller; when working in water, the rim motor drives The propeller rotates, and the one-way clutch mechanism engages with the propeller. The invention utilizes the characteristics of high speed and low torque of the outer rotor motor and the low speed and high torque of the rim motor to realize high-efficiency propulsion under water and in the air, and has the characteristics of compact structure and high propulsion efficiency.

Description

technical field [0001] The invention belongs to the technical field of thrusters, in particular to an electric water-air dual-purpose thruster. Background technique [0002] The water-air amphibious cross-domain vehicle is a new concept vehicle that can sail in the underwater environment and fly in the air, which can greatly expand the scope of operation and application fields. In order to realize the navigation function of the water-air amphibious cross-domain vehicle in two media, underwater and in the air, propellers with underwater and aerial operation functions are needed. However, due to the different characteristics of water and air such as density and viscosity, the propeller design methods are also quite different, and the requirements for the output characteristics of the propeller drive motor are very different. For the same propeller, high motor speed and small torque are required in the air, and low motor speed and high output torque are required for underwater...

AI Technical Summary

Problems solved by technology

However, due to the different characteristics of water and air such as density and viscosity, the propeller design methods are also quite different, and the requirements for the output characteristics of the propeller drive motor are very different

For the same propeller, high motor speed and small torque are required in the air, and low motor speed and large output torque are required for underwater propulsion. The same set of motors can hardly meet the operating requirements in air and water at the same time.

The water-air propeller with the same propeller needs motors with two operating characteristics to achieve efficient propulsion in the air and underwater. At the same time, it is necessary to avoid driving the low-speed motor to rotate when the high-speed motor is running, because on the one hand, it will increase the load on the high-speed motor. On the other hand, the reverse electromotive force between the low-speed motor lines will be greatly increased, which will have a destructive effect on the motor controller

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