Peripheral surface contact torque sensor and the electric power-assisted vehicle

A pressure sensor and sensor technology, applied in the field of sensors, can solve problems such as difficulty in meeting market needs, inability to achieve self-sufficiency, complex structure, etc., and achieve the effects of compact structure, accurate measurement, and simple transmission chain

Pending Publication Date: 2018-05-11
深圳市奥酷曼智能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, torque sensors are mostly imported from abroad, and domestic self-sufficiency cannot be achieved
Even the existing foreign products have complex structures and high costs, which are difficult to meet the needs of the rapidly developing market.

Method used

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  • Peripheral surface contact torque sensor and the electric power-assisted vehicle
  • Peripheral surface contact torque sensor and the electric power-assisted vehicle
  • Peripheral surface contact torque sensor and the electric power-assisted vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Please refer to Figure 1~2 , the present embodiment provides a peripheral surface contact torque sensor 0100, the peripheral surface contact torque sensor 0100 includes a body unit 0110, a torque input terminal 0120 and a pressure sensor 0130, to realize quick and accurate measurement of torque, with a compact structure , responsive, accurate measurement and other advantages. The main structure of the peripheral surface contact torque sensor 0100 will be introduced in detail below.

[0036] First of all, in this embodiment, the torque to be measured is input from the torque input terminal 0120, and is converted into an axial force by the peripheral surface contact between the torque input terminal 0120 and the body unit 0110, and then transmitted to the pressure sensor 0130. Realize inductive measurement.

[0037] The body unit 0110 includes a first active surface 0111a and a second active surface 0112a oppositely disposed. The first acting surface 0111a is used to ...

Embodiment 2

[0050] Please refer to Figure 1~2 , On the basis of Embodiment 1, this embodiment provides a peripheral surface contact torque sensor 0100 with an improved structure, and the improvement lies in the specific structure of the body unit 0110 . The structure of the body unit 0110 will be described in detail below, and the rest of the parts that have been described in Embodiment 1 will not be repeated here.

[0051] The body unit 0110 can adopt an integral molding structure, or a split splicing structure. Preferably, the body unit 0110 includes a fixed installation body 0111 and a press-fit cover 0112, the side of the installation body 0111 facing the torque input end 0120 has a first action surface 0111a, and the side of the press-fit cover 0112 facing the torque input end 0120 has a The second active surface 0112a.

[0052] Install the body 0111 and the press-fit cover 0112 by nailing, welding, etc., so that there is no relative movement between the two. Preferably, the inst...

Embodiment 3

[0057] Please refer to Figure 1~2 , On the basis of Embodiment 1 or 2, this embodiment provides a peripheral surface contact torque sensor 0100 with an improved structure, and the improvement lies in the specific form of the peripheral surface contact. The structure of the peripheral surface contact will be described in detail below, and the other parts that have been described in Embodiment 1 or 2 will not be repeated here.

[0058] Preferably, the torque input end 0120 has a transmission curved surface 0121a on the peripheral side of one end facing the first acting surface 0111a, and the driving curved surface 0121a and the first acting surface 0111a have the same surface profile and form a peripheral surface contact engagement relationship. It should be understood that the so-called peripheral side of one end is not limited to the end of the axial outer contour of the torque input end 0120, but only refers to the outer peripheral surface of the exposed end directly facing ...

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PUM

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Abstract

A peripheral surface contact torque sensor includes a body unit including a first acting surface and a second acting surface arranged opposite to each other, a torque input end driven to rotate via torque to be measured and a pressure sensor. Driving force is transmitted through peripheral surface contact between the torque input end and the first acting surface, the driving force is used for driving the body unit to rotate and move along an axial direction, so that the second acting surface approaches the torque input end along the axial direction, the pressure sensor is used for inductivelymeasuring axial force, and the axial force is an axial component of the driving force; the second acting surface, the pressure sensor, the torque input end and the first acting surface are distributedalong a rotational axial direction of the torque input end. The peripheral surface contact torque sensor and the electric power-assisted vehicle provided in the invention are advantaged by compact structure, sensitive response, accurate measurement, easy manufacturing and the like.

Description

technical field [0001] The invention belongs to the technical field of sensors, and specifically relates to a peripheral surface contact moment sensor and an electric bicycle. Background technique [0002] An electric moped is a bicycle type that is based on a bicycle structure and equipped with an electric drive unit. Electric mopeds can provide corresponding power support according to the rider's pedaling strength, reduce the rider's riding burden, and greatly increase the riding comfort and riding mileage, so they are gradually welcomed by the market. [0003] Among them, the torque sensor is the core component of the electric bicycle. The torque sensor is used to sense and measure the riding torque of the rider, and provide a basis for judging the power output of the electric drive unit. As a component that senses the rider's intentions, the performance of the torque sensor is crucial. [0004] At present, torque sensors are mostly imported from abroad, and the countr...

Claims

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Application Information

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IPC IPC(8): G01L3/04G01L5/22B62M6/50
CPCG01L3/04G01L5/225B62M6/50
Inventor 陈智清彭春山刘剑虹梅养斌
Owner 深圳市奥酷曼智能技术有限公司
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