FRAME-TYPE BILATERAL REVERSE PERMANENT MAGNET DIRECT CURRENT LINEAR MOTOR
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United States of America Patent
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Issued Date -
Feb 8, 2024
app pub date -
Apr 13, 2023
filing date -
Aug 2, 2022
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A frame-type bilateral reverse permanent magnet direct current linear motor is provided, including a support frame, an iron yoke assembly with a first iron yoke, a second iron yoke and a middle iron yoke, a permanent magnet group, a coil winding and a pole piece assembly. Two groups of intermediate transition permanent magnet assemblies are disposed between the first iron yoke and the middle iron yoke and between the second iron yoke and the middle iron yoke. The intermediate transition permanent magnet assemblies includes transition permanent magnets and corresponding transition connection iron yokes; and magnetic pole orientations of the transition permanent magnets of the two groups of intermediate transition permanent magnet assemblies are reverse. The linear motor realizes efficient direct-current linear control, and has a high speed, a precise controllability, a high thrust density and small thrust fluctuation, and easiness in assembling.
First Claim
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