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Title:
MAGNETICALLY RECONFIGURABLE ROBOT JOINT MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/196960
Kind Code:
A1
Abstract:
The present invention belongs to the field of robot drive apparatuses, and relates to a magnetically reconfigurable robot joint motor, comprising a coil stator, a permanent magnet rotor and a magnetic reconfiguration unit, the magnetic reconfiguration unit being arranged around the outer periphery of the permanent magnet rotor, a coil connected to a control circuit being wound on an outer layer of the magnetic reconfiguration unit. When it is necessary to execute low rotation speed or zero rotation speed operating conditions, the control circuit inputs current pulses of different strengths so that the magnetic reconfiguration unit obtains permanent magnetisations of corresponding degrees, and a magnetic field is generated which acts together with a magnetic field of the permanent magnet rotor, so as to maintain the torque required for the output. The present invention can obtain the required torque at both high speeds and low speeds, and can also maintain a relatively high motor efficiency.

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Inventors:
BAI, Kun (No.1037 Luoyu Road, HongshanWuhan, Hubei 4, 430074, CN)
YUAN, Mi (No.1037 Luoyu Road, HongshanWuhan, Hubei 4, 430074, CN)
ZHU, Lang (No.1037 Luoyu Road, HongshanWuhan, Hubei 4, 430074, CN)
LEE, Kok-Meng (No.1037 Luoyu Road, HongshanWuhan, Hubei 4, 430074, CN)
Application Number:
CN2019/084717
Publication Date:
October 17, 2019
Filing Date:
April 28, 2019
Export Citation:
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Assignee:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (No.1037 Luoyu Road, HongshanWuhan, Hubei 4, 430074, CN)
International Classes:
H02K21/02
Foreign References:
CN108494202A2018-09-04
CN105337429A2016-02-17
CN105207438A2015-12-30
CN104578477A2015-04-29
Attorney, Agent or Firm:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY PATENT AGENCY CENTER (Suite 340, Building East One Huazhong University of Science and Technology,No.1037, Luoyu Road, Hongsha, Wuhan Hubei 4, 430074, CN)
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