Small electric vehicle central driver

Abstract

The invention discloses an electromechanical integral middle-arranged motor driver of a small scaled electrocar, including a motor, a controller, a sensor, a gear reducer, a one-way clutch, a chain tensioner and a shell. A fixing frame is mounted a middle axis position of a lower part of the small scaled electrocar. The middle-arranged motor driver is mounted on the fixing frame through a tensioning piece. The motor is a DC rare earth permanent magnet intermediate speed interior rotor motor. A motor shaft is in parallel to a big gear shaft and the middle axis. The controller is built-in and mounted in the driver shell or on the shell. The sensor is an acceleration sensor. The gear reducer is a single-stage reducer lubricated by lubricating grease or doped with small amount of lubricating oil. The shell is made of a light alloy or engineering plastics with high-impact and high size stability and is provided with a sealing rubber plug for leading out a wire harness. The periphery of the shell part is provided with a groove and sealed by a silicon rubber to form a full-sealing waterproof structure. The driver has a ingenious and compact structure, strong motive power, good performance and high reliability.

Description

technical field [0001] A small volume, light weight, compact structure, strong power mechatronics small electric vehicle center motor driver, suitable for all kinds of electric / power-assisted bicycles / light electric motorcycles, folding electric bicycles, light electric tricycles, electric Scooters, etc., belong to the field of drive control of small electric vehicles. Background technique [0002] China's small electric vehicle industry, especially electric bicycles and mopeds, has developed tremendously over the past ten years, and China has become the world's largest small electric vehicle market and R&D and manufacturing base. In recent years, due to the energy crisis, environmental pollution, especially driven by environmental and social factors such as the depletion of oil resources, soaring oil prices, and inflation, the electric vehicle industry has received unprecedented attention and attention worldwide. Form a new, unprecedentedly huge market and R&D, design,...

AI Technical Summary

Problems solved by technology

[0011] The present invention proposes a new-type mechatronic mid-mounted motor driver for small electric vehicles to overcome the shortcomings of the prior art. It must withstand the weight of the rider and the pedaling force acting on the middle drive shell, resulting in poor material and structural strength, poor reliability, high failure rate, large volume, complex structure, high manufacturing difficulty, high cost, and high noise caused by multi-stage deceleration , Low transmission efficiency and other shortcomings and deficiencies

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