The invention provides an electromagnet, a control method of the electromagnet and an aircraft, and the electromagnet comprises an excitation coil assembly wound on an iron core, a movable armature assembly and a lock catch mechanism; the movable armature assembly comprises an ejector rod inserted into the first coil assembly and the second coil assembly, a movable armature fixedly connected with the ejector rod and located between the first coil assembly and the second coil assembly, and a permanent magnet arranged in the movable armature. The lock catch mechanism comprises a lock catch body arranged between the first coil assembly and the second coil assembly, a telescopic moving rod in the lock catch body and a reset spring. When the excitation coil group is in an excitation state, the moving armature drives the ejector rod to extend or retract; and when the excitation coil group is in a non-excitation state, the positions of the moving armature and the ejector rod are kept fixed. According to the electromagnet, the problems of electromagnet heating, electromagnetic force attenuation and the like caused by long-time power supply can be solved, and meanwhile the problem that the ejector rod is unstable after magnetic force attenuation of the permanent magnet under the power failure condition is solved.
本申请提出一种电磁铁、电磁铁的控制方法及飞行器,其中,电磁铁包括绕制于铁芯上的激励线圈组、可动衔铁组件以及锁扣机构;可动衔铁组件包括插入于第一线圈组与第二线圈组的顶杆、与顶杆固定连接且位于第一线圈组与第二线圈组之间的动衔铁以及设置在动衔铁内部的永磁体;锁扣机构包括设置在第一线圈组与第二线圈组之间的锁扣主体、在锁扣主体内部可伸缩的移动杆以及复位弹簧;在激励线圈组处于激励状态时,动衔铁带动顶杆伸出或收回;在激励线圈组处于非激励状态时,动衔铁与顶杆位置保持固定。本申请提供的电磁铁能够避免长时间供电带来的电磁铁发热、电磁力衰减等问题,同时避免断电情况下永磁体在磁力衰减后出现的顶杆不稳定问题。
Electromagnet, electromagnet control method and aircraft
电磁铁、电磁铁的控制方法及飞行器
2024-05-28
Patent
Electronic Resource
Chinese