Miniature motor rotor

Abstract

The invention discloses a micro-motor rotor, which comprises a centre shaft (1), one or two chain wheel discs (4), a bracket (2) and a high-intensity magnet (3). The bracket (2) takes the shape of a wheel, and the high-intensity magnet (3) is fixed on the circumferential surface thereof; each chain wheel disc (4) is fixed on one end face of a hub of the bracket (2); the centre shaft (1) is arranged in a center hole of the bracket (2) through a bearing; a ratchet gearing is arranged between the bracket (2) and the centre shaft (1); pedal devices are arranged at two ends of the centre shaft (1). The micro-motor rotor can ensure that a vehicle can run normally on a steeper slope or can start up successfully when in load.

Description

technical field [0001] The invention relates to a micro motor rotor used for electric bicycles, motorcycles, electric tricycles and other vehicles. Background technique [0002] The prior art micro-motor rotors installed on electric bicycles, motorcycles, electric tricycles and other vehicles include a central shaft, a bracket and a strong magnet, the central shaft is fixed in the central hole of the bracket, and the bracket is wheel-shaped, and its A strong magnet is fixed on the circumferential surface. The torque of the micromotor is output by the central axis of the rotor of the micromotor. When the motor needs to provide more power under overload conditions, that is, when the electric vehicle is driving on a steep slope or when the load is too large to start, the output power of the micro-motor rotor will be limited by the inherent output power of the motor . [0003] Because the torque of the micro-motor of the prior art is output by the central shaft of the micro-m...

AI Technical Summary

Problems solved by technology

When the motor needs to provide more power under overload conditions, that is, when the electric vehicle is driving on a steep slope or when the load is too large to start, the output power of the micro-motor rotor will be limited by the inherent output power of the motor

[0003] Because the torque of the micro-motor of the prior art is output by the central shaft of the micro-motor rotor, the central shaft rotates continuously during the operation of the car, so the pedal device cannot be installed on the central shaft, so the micro-motor rotor of the prior art can only be mounted on the central shaft. The micro-motor casing is installed on the front wheel or the rear wheel of the car, and both installation methods have defects: if installed on the front wheel, the distribution of the center of gravity is unreasonable, and the rotation of the handlebar is not flexible; if installed on the rear wheel, The distribution of the center of gravity is also unreasonable, and consumes a lot of energy, and the rear wheels are prone to collisions during the driving of the vehicle, resulting in the loosening of the nuts fixing the motor, which in turn affects the stability and safety of the vehicle.

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