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Ultra-small coreless brushless high-efficiency hub motor

An in-wheel motor, ironless technology, used in motors, electromechanical devices, electric vehicles, etc., can solve the problems of low motor speed, fast gear wear, small wheel hub, etc., and achieve extended gear life, high transmission efficiency, and coil loss. small effect

Active Publication Date: 2016-09-07
深圳市精锐昌科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current light electric bicycles generally use various types of mini hub motors. The disadvantages of this type of motor are: 1. The hub is small, and the built-in planetary gear reduction mechanism and motor components are compactly set in a limited space. The gear reduction ratio cannot be large, and the motor speed cannot be increased, so they cannot achieve the ideal goal of maximizing efficiency, minimizing volume, and weight. 2. The axial size of the existing mini hub motor is not small enough to meet Can not meet the requirement of small crotch opening of bicycle wheel frame
3. The planetary gear reduction mechanism and the motor components are installed in the hub together, and liquid lubricating oil cannot be used, the gear lubrication effect is not good, and the gear wears quickly

Method used

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  • Ultra-small coreless brushless high-efficiency hub motor

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] exist figure 1In the front view sectional structure schematic diagram of the ultra-small ironless brushless high-efficiency hub motor shown, the hub motor is a kind of ironless brushless two-pole permanent magnet DC motor, which is also the left half shaft of the hub, and the hub motor is set Aluminum alloy shell 1, the right end of the aluminum alloy shell is made with the right end cover 2 integrated with the shell, the left end of the right end cover is provided with a bearing frame, the inner circle of the bearing frame is installed with the left bearing 3, the right end of the right end cover is provided with a circular plate frame 4, and the center of the circular plate frame is installed Right bearing 5, the upper and lower countersunk head screws 6 and 7 on the disc frame are screwed in the upper and lower nut holes of the right end cover...

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Abstract

The invention discloses an ultra-small coreless brushless high-efficiency hub motor, and the motor consists of an axle motor and a hub speed reducer. The axle motor is a coreless brushless bipolar permanent magnet DC motor, and is high in efficiency, is small in size, is light in weight and has no magnetic resistance. The axle motor also serves as a left half shaft of a hub. The hub speed reducer is a high-efficiency two-stage planetary gear speed reduction mechanism which is disposed on a right half shaft in a hub housing, and is an independent speed reducer which is fully sealed by an aluminum alloy hub housing. The motor has the excellent conditions for using liquid lubricating oil, and enables the oil not to be leaked easily. The remarkable advantages of the motor used on an electric bicycle also can be reflected by the motor used on an electric motorcycle and an electro-tricycle. Because the motor is high in efficiency, small in size and light in weight, the motor meets the most basic demands of various types of electric vehicles. According to the different requirements of power and mechanical strength of the motors, different types of hub motors can be developed.

Description

technical field [0001] The invention relates to a hub motor, specifically, an ultra-small iron-coreless, brushless, high-efficiency hub motor. Background technique [0002] The current light electric bicycles generally use various types of mini hub motors. The disadvantages of this type of motor are: 1. The hub is small, and the built-in planetary gear reduction mechanism and motor components are compactly set in a limited space. The gear reduction ratio cannot be large, and the motor speed cannot be increased, so they cannot achieve the ideal goal of maximizing efficiency, minimizing volume, and weight. 2. The axial size of the existing mini hub motor is not small enough to meet Can not meet the requirement that the bicycle wheel frame has a small crotch opening. 3. The planetary gear reduction mechanism and the motor components are installed in the wheel hub together, and liquid lubricating oil cannot be used, the gear lubrication effect is not good, and the gear wears qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/116H02K11/215
CPCH02K7/116Y02T10/64
Inventor 朱幕松
Owner 深圳市精锐昌科技有限公司
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