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Electric wheelchair hub motor

A hub motor and electric wheelchair technology, which is applied in the direction of electric components, brake actuators, gear transmission mechanisms, etc., can solve the problems of inability to guarantee the mechanical brake mechanism, inconvenient movement, and inappropriateness, and achieve simple manufacturing, convenient processing, and small size. compact effect

Pending Publication Date: 2018-07-10
SUZHOU XIONGDA MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of motor also tends to be designed and applied to electric wheelchairs, but encounters the following technical problems: the hub motors on electric bicycles usually use a clutch and cooperate with a mechanical brake mechanism to achieve braking, but most people who make electric wheelchairs have limited mobility and cannot Ensure that the mechanical brake mechanism can be operated reliably, so it is not suitable to transfer the brake system of the electric bicycle hub motor to the electric wheelchair

Method used

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  • Electric wheelchair hub motor

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Embodiment

[0029] Example: Combined figure 1 The hub motor of this electric wheelchair provided by the present invention is described in detail as follows:

[0030] This electric wheelchair hub motor has a large shaft 2 fixed to the wheelchair bracket, a hub body mounted on the shaft 2 through a shaft bearing 4 rotation, a motor body and a planetary reduction mechanism arranged in the hub body, and the motor body It includes the motor casing fixed to the inner end of the large shaft 2, the stator and rotor 14, 13 arranged in the motor casing, and the output shaft fixed to the rotor 13 and protruding from the motor casing. The output shaft is connected to the wheel hub through the planetary reduction mechanism The inner ring gear 17 on the inner wall of the body is connected in transmission.

[0031] Specifically, such as figure 1 As shown, the hub body in this embodiment includes a hub shell 1 and a hub end cover 18 fixed to the hub shell 1. The hub shell 1 is rotatably assembled on th...

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Abstract

The invention discloses an electric wheelchair hub motor. The electric wheelchair hub motor comprises a macro-axis fixed with a wheelchair support, a hub body assembled on the macro-axis in a rotatingmode as well as a motor body and a planetary reducing mechanism which are arranged in the hub body, wherein the motor body comprises a motor shell fixed with the macro-axis, a stator and a rotor which are arranged in the motor shell as well as an output rotating shaft which is fixed with the rotor and extends out of the motor shell, and the output rotating shaft is in transmission connection withan inner gear ring arranged on the inner wall of the hub body through the planetary reducing mechanism; the electric wheelchair hub motor also comprises a built-in electromagnetic braking device, thedevice comprises an armature disk, a first friction disk and a second friction disk which are sequentially arranged between the inner end of the macro-axis and the motor shell along an axial direction, the first friction disk is a non-metallic friction disk and is fixed on the output rotating shaft, and the second friction disk is fixed with the motor shell; and the electric wheelchair hub motoralso comprises a braking coil which is arranged at the inner end of the macro-axis and is in electromagnetic attraction with the armature disk and an elastic mechanism of which the elasticity direction is opposite to the electromagnetic attraction direction. The electric wheelchair hub motor disclosed by the invention is compact in volume, high in working efficiency and capable of realizing efficient braking.

Description

technical field [0001] The invention relates to a wheel hub motor of an electric wheelchair. Background technique [0002] At present, the driving device of conventional electric wheelchairs mostly uses a brushed DC motor to drive the wheel shaft to rotate through the shaft transmission mechanism. The disadvantage of this device is that it is large in size, heavy in weight, low in efficiency and bloated when installed on the wheelchair. On the other hand, for the consideration of driving safety, the braking part of the electric wheelchair is usually not equipped with a mechanical hand brake, but a special electromagnetic brake is used. This electromagnetic brake is usually assembled on the shaft transmission mechanism, which further increases the volume and weight of the device. [0003] The hub motor is currently a widely used driving component on electric bicycles, and has the advantages of large reduction ratio and small size. This type of motor also tends to be designe...

Claims

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Application Information

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IPC IPC(8): H02K7/102H02K7/00A61G5/10F16D55/02F16D65/12F16D65/14
CPCH02K7/003H02K7/1021F16D55/025F16D65/125F16D65/14A61G5/10A61G5/1005A61G5/1027F16D2200/0034F16D2200/0004F16D2121/22
Inventor 熊子儒
Owner SUZHOU XIONGDA MOTOR
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