Turntable sensor with uniformly distributed magnetic blocks for moped

A technology of power-assisted bicycles and uniform distribution, which is applied to the direction of transmitting sensing components, vehicle components, and rider drives by using electric/magnetic devices, and can solve problems such as inconsistency, difference, and easy signal drift caused by merging control signals
CN102826167BActive Publication Date: 2014-03-26浙江蓝点动力有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
浙江蓝点动力有限公司
Publication Date
2014-03-26

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Abstract

The invention discloses a turntable sensor with uniformly distributed magnetic blocks for a moped, belongs to the technical field of providing a signal by magnetic induction, and particularly relates to a technology for carrying out multi-point magnetic induction to provide a control signal on a rotating component. The turntable sensor comprises a sensing element, a power model processor, a digital-analogue converter and an operational amplifier which are orderly connected, wherein the sensing element is that a plurality of permanent magnet blocks which are distributed in a ring are fixedly arranged on a rotating plate; the magnetic polarities of the adjacent permanent magnet blocks are opposite at one side of the rotating plate, namely the magnetic polarity distribution mode of all permanent magnet blocks at one side of the rotating plate is an N pole, an S pole, the N pole ...; and halls are arranged at the positions near the permanent magnet blocks. The sensor has the advantages that the halls can obtain rectangular wave signals by an opposite distribution mode of the magnetic polarities NS of the adjacent permanent magnet blocks; the signals can be conveniently subjected to digital treatment, and the sensor is the sensor capable of outputting an electric signal with an artificially set control model.
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Description

technical field

[0001] The invention belongs to the technical field of providing signals by magnetic induction, and in particular relates to the technology of providing control signals by multi-point magnetic induction on a rotating component. Background technique

[0002] The Chinese patent 201020295192.0 "Claw Type Torque Sensing Device" applied by Yebao Vehicle Material Industry (Kunshan) Co., Ltd. discloses a sensing device for power-assisted bicycles. The sensing device includes a magnetic part and an elastic part to sense the torque. sensing device. After a long time of use, the change of the elastic coefficient of the elastic member will lead to changes in the sensing signal and the control effect of the controlled motor, and the power-assisted effect will not match the power-assisted needs of people. Moreover, the design structure of the elastic member is complex and the manufacturing cost is high.

[0003] The Chinese patent 01201843.0 "Automatic Detection Device ...

Claims

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