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1. (WO2018196338) AXIALLY MOVABLE MAGNETIC SHIELDING-TYPE PERMANENT MAGNETIC SPEED REGULATOR

Pub. No.:    WO/2018/196338    International Application No.:    PCT/CN2017/110798
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Nov 15 00:59:59 CET 2017
IPC: H02K 49/10
Applicants: TIANJIN JIXUAN ENERY-SAVING TECHNOLOGY CO., LTD.
天津吉玄节能技术股份有限公司
Inventors: LIU, Zhiming
柳志明
Title: AXIALLY MOVABLE MAGNETIC SHIELDING-TYPE PERMANENT MAGNETIC SPEED REGULATOR
Abstract:
Disclosed is an axially movable magnetic shielding-type permanent magnetic speed regulator, comprising a conductor rotor (19), a permanent magnetic rotor (34), and an axially movable magnetic shielding mechanism. The axially movable magnetic shielding mechanism comprises an axial shielding structure and a magnetic flux adjusting structure. The axial shielding structure is connected to the magnetic flux adjusting structure. Axial movement of the magnetic flux adjusting structure is achieved by a transmission mechanism formed of a screw (12), a nut (11) and a guide rod (22). By applying the magnetic shielding principle, the axial position of the axial shielding structure is adjusted. Compared with the adjustment of the whole permanent magnetic rotor (34), the axial force required to be overcome is greatly reduced, the output torque of the magnetic flux adjusting structure is accordingly greatly reduced, and the whole adjusting structure is simpler and smaller.