Integrated built-in motor for electric-bicycle motor wheel disc

Abstract

The invention relates to an integrated built-in motor for an electric-bicycle motor wheel disc, which is installed on a five-way in the middle of an electric-bicycle frame. The integrated built-in motor for the electric-bicycle motor wheel disc can be driven by electric power and manpower, can be mutually driven by the manpower and the electric power or is respectively independently driven without mutual influence. The integrated built-in motor for the electric-bicycle motor wheel disc has the advantages of small energy consumption during movement, stable and reliable force transfer and strong climbing capability. The integrated built-in motor for the electric-bicycle motor wheel disc comprises a left wire bowl, a center shaft of a motor, an inner end cover of the motor, a chain wheel, a bearing 1, a bearing 2, an inner core of a stator, a bearing 3, magnetic steel, a one-way clutch, a bearing 4, a right locking nut, a stator silicon steel sheet and an outer end cover of the motor, wherein the inner core of the stator and the stator silicon steel sheet are installed on the inner end cover of the motor together by the bearing 1; the magnetic steel is stuck on the inner wall of the outer end cover of the motor to form a motor rotor; the center shaft of the motor successively passes through the bearing 2 and the bearing 3; an external thread arranged on the left end of the inner core of the stator is provided with the right locking nut; the one-way clutch is fixedly installed on the outer end of the center shaft of the motor; and the outer end cover of the motor with the magnetic steel, the chain wheel and the inner end cover of the motor are fixed together by a screw 1.

Description

technical field [0001] The invention relates to an electric bicycle motor wheel disc integrated central motor, which is installed on the middle bracket of the electric bicycle frame, and can be driven by electricity, human power, human power and electric power together or separately, without affecting each other. Low energy consumption during exercise, stable and reliable force transmission, and strong climbing ability. Background technique [0002] At present, the hub motor is still a key supporting component of the electric vehicle drive system. Although brushless motors have mostly replaced brushed motors, the overall production technology is backward, and almost all of them are still wound by hand. High-speed geared motors have the advantages of large torque and strong climbing ability, but because the design and manufacturing technology has not yet passed the test, quality problems occur from time to time, and have not yet become mainstream products to replace low-spee...

AI Technical Summary

Problems solved by technology

Although brushless motors have mostly replaced brushed motors, the overall production technology is backward, and almost all of them are still hand-wound.

High-speed geared motors have the advantages of large torque and strong climbing ability, but because the design and manufacturing technology has not yet passed the test, quality problems occur from time to time, and have not yet become mainstream products to replace low-speed brushless hub motors

In addition, the reliability (repair rate) of the current better controllers can only be controlled at about 1-3%, and the overall quality of the drive control system is still at a relatively low level

[0003] The disadvantages and deficiencies of the existing small electric hub motor products are: low-speed hub motors have poor climbing ability, and the efficiency decreases under high torque; therefore, the diameter and volume of the motor are getting bigger and bigger, and have gradually reached 222mm from 142mm, 153mm, and 205mm , 266mm, due to the large amount of metal consumables and the heavy motor, the power and energy density are very low, which does not meet the requirements of the era of energy-saving society and light weight

However, due to excessive power consumption, limited battery energy, short mileage on a single charge, and coordinated control of front and rear wheel motors, it is only suitable for special purposes.

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