Title:
ROTOR POSITION DETECTION APPARATUS FOR PRIMARY SEGMENTED LINEAR ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/000954
Kind Code:
A1
Abstract:
Disclosed in the present invention is a rotor position detection apparatus for a primary segmented linear electric motor. The primary stage of the primary segmented linear electric motor comprises two stators, each of which is composed of a winding coil. A secondary stage of the primary segmented linear electric motor is composed of an iron plate on which magnetic steel is arranged. On the iron plate, N-pole magnets and S-pole magnets are alternately arranged. The length of a rotor is larger than the length of a single stator. Each stator is provided with a rotor position detection apparatus, wherein each rotor position detection apparatus comprises two main control boards and a long-strip board; and the two main control boards are respectively mounted on two ends of a stator, the long-strip board is connected to the two main control boards and is attached onto the bottom face of the stator, and the main control boards and the long-strip boards are each provided with a Hall circuit. The present invention improves position feedback precision and enhances the anti-interference performance of a position feedback system; and a resolution can reach 10 µm by means of measuring output pulse signals of a Hall position sensor, such that the requirements of a primary segmented linear electric motor for high speed and high precision can be met.
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Inventors:
LIU JIZHU (CN)
LI TAO (CN)
HU WEI (CN)
PAN MINGQIANG (CN)
LI TAO (CN)
HU WEI (CN)
PAN MINGQIANG (CN)
Application Number:
PCT/CN2022/127635
Publication Date:
January 04, 2024
Filing Date:
October 26, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
H02K41/03; H02K11/215; H02K11/30; H02P6/16; H02P6/18
Foreign References:
| CN215580861U | 2022-01-18 | |||
| CN115102361A | 2022-09-23 | |||
| CN111769715A | 2020-10-13 | |||
| US20090195195A1 | 2009-08-06 |
Attorney, Agent or Firm:
SUZHOU JIANSHAN INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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