Moment-assistant sensor for single magnetic pole electric bicycle

A technology of electric bicycles and power-assisting sensors, which is applied in the direction of transmitting sensing components, vehicle components, vehicle gearboxes, etc. using electric/magnetic devices, can solve problems such as poor working reliability and complex structure, and achieve high reliability and accuracy retention. Good, low number of effects

Inactive Publication Date: 2009-12-02
南京奥敏传感技术有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to design a single magnetic pole electric bicycle torque booster sensor with simple structure and reliable operation in view of the problems of complex structure and poor working reliability in the existing booster sensors

Method used

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  • Moment-assistant sensor for single magnetic pole electric bicycle
  • Moment-assistant sensor for single magnetic pole electric bicycle
  • Moment-assistant sensor for single magnetic pole electric bicycle

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 2 , 3 shown.

[0024] A single magnetic pole electric bicycle torque booster sensor, which includes a fixed disk 1 (usually a plastic disk) fixed near the central axis of the electric bicycle, and a channel 2 is provided on the fixed disk 1, and the channel 2 is generally arc-shaped structure, its radial width is generally between 1-10 mm, but at least it should be greater than the sum of the thicknesses of the inner teeth 5 and the outer teeth 6, and the two sides of the channel 2 are respectively equipped with a magnet 3 and a Hall integrated sensor capable of inducing changes in the magnetic field Chip 4 (the model can be 49E), the Hall integrated chip 4 is connected to the detection circuit, the tooth ends of the inner teeth 5 and the outer teeth 6 are inserted into the channel 2, and the gap between the inner teeth 5 and th...

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Abstract

The invention relates to a moment-assistant sensor for a single magnetic pole electric bicycle, which comprises a fixed disk fixed nearby a middle shaft of the electric bicycle and is characterized in that the fixed disk is provided with a passage, two sides of the passage are provided with a magnet and a Hall element capable of sensing magnetic field changes respectively, the Hall element is connected with a Hall circuit, the tooth ends of an internal tooth and an external tooth are inserted into the passage, a gap between the internal tooth and the external tooth is changeable, the depths inserted into the passage of the tooth ends exceed the position of a magnetic field, the internal tooth is fixedly connected with an inner disk of a faceplate, the external tooth is fixedly connected with an outer disk of the faceplate, the inner disk is positioned in the outer disk, the inner disk is connected with the outer disk through a driving spring, the outer disk is connected with a real wheel driving chain, and the inner disk is connected with a pedal crank for driving the inner disk to rotate. The moment-assistant sensor has small quantity of components and parts and a simple structure, and can greatly reduce the product cost; besides, a single Hall circuit has small power consumption current and can be connected with a controller of the electric bicycle directly.

Description

technical field [0001] The invention relates to a drive control component for an electric bicycle, in particular a sensor capable of sensing whether electric assistance is needed, specifically a single magnetic pole electric bicycle torque assistance sensor. Background technique [0002] As we all know, an electric bicycle is not only an environmentally friendly energy transfer tool, but also a very convenient fitness equipment. When an electric bicycle is used as a fitness and transportation tool, the power mainly comes from the rider's pedals. Or when people need to take a break, people hope to use electric power assist to reduce the fatigue of riding, so timely perception of whether they need power assist has long been the focus of people's research. For this reason, people have developed various sensors that hope to sense the need for electric power assistance. As far as the applicant knows, the main sensors currently have the following categories: [0003] 1. Speed ​​...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/22G01D5/14B62M23/02
Inventor 陈为祥
Owner 南京奥敏传感技术有限公司
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