Disclosed are a torque sensing device of an electric-bike central motor, and an electric-bike central motor having the device. The torque sensing device of an electric-bike central motor, comprising a central shaft going through a five-way tube of the bike, a shaft sleeve that is disposed around this central shaft and will be circumferentially deformed when subjected to a circumferential torsional force, and a chain wheel disposed around the shaft sleeve, the shaft sleeve being provided with a torque sensing assembly that can sense magnitude of the circumferential torsional force to which the shaft sleeve is subjected, the torque sensing assembly being connected to a motor controller of the bike via an outlet device. The outlet device is composed of a movable magnetic core, a movable coil fixed on the movable magnetic core, a static magnetic core. This torque sensing device of the present invention has more reliable performance, stable signal transmission, and reduced friction loss.
MIDDLE-MOUNTED MOTOR OF AN ELECTRIC BICYCLE AND MOMENT SENSING DEVICE THEREOF
MITTIG-MONTIERTER MOTOR EINES ELEKTROFAHRRADS UND DREHMOMENTMESSVORRICHTUNG DAFÜR
MOTEUR À MONTAGE CENTRAL D'UNE BICYCLETTE ÉLECTRIQUE ET DISPOSITIF DE DÉTECTION DE COUPLE DE CELUI-CI
2019-05-01
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE |
Built-in-motor electric-bicycle middle axle force moment sensing system
European Patent Office | 2015
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