Electromagnetic actuator

A coil (31) of an electromagnetic actuator (101) generates a magnetic field whose direction is opposite to a magnetic field of a permanent magnet (40), whereby a repulsive force is generated between a stator (32) and the permanent magnet (40). A rear plate (44) is movable together with an output pin...

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Bibliographic Details
Main Author AMANO HITOSHI
Format Patent
LanguageChinese
English
Published 27.10.2017
Subjects
BLASTING
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:A coil (31) of an electromagnetic actuator (101) generates a magnetic field whose direction is opposite to a magnetic field of a permanent magnet (40), whereby a repulsive force is generated between a stator (32) and the permanent magnet (40). A rear plate (44) is movable together with an output pin (60). The permanent magnet (40) is joined to the rear plate (44) and a front plate (45) is joined to the permanent magnet (40). A first gap (21) serving as a short-circuit limiting portion for limiting magnetic short-circuiting between magnetic poles of the permanent magnet (40) is interposed between an outer peripheral surface (612) of the output pin (60) made of a magnetic material Inner peripheral surface (452) of the front plate (45) is formed. 电磁致动器(101)的线圈(31)产生磁场，该磁场的方向与永磁体(40)的磁场方向相反，借此在定子(32)和永磁体(40)之间产生排斥力。后板(44)可随输出销(60)起移动。永磁体(40)与后板(44)接合，并且前板(45)与永磁体(40)接合。在由磁性材料制成的输出销(60)的外周面(612)和前板(45)的内周面(452)之间，形成有用作短路限制部以限制永磁体(40)的磁极之间的磁短路的第间隙(21)。
Bibliography:Application Number: CN201710060593