公开(公告)号：US4419643A

公开(公告)日：1983-12-06

申请号：US368251

申请日：1982-04-14

申请人： Shin Ojima ,  Kiichiro Tada ,  Toru Yoshimura ,  Naoki Yoshikawa ,  Yoshinao Naito

发明人： Shin Ojima ,  Kiichiro Tada ,  Toru Yoshimura ,  Naoki Yoshikawa ,  Yoshinao Naito

IPC分类号： H01F7/122 ,  H01F7/16 ,  H01H7/16

CPC分类号： H01F7/1615 ,  H01F7/122

摘要： A self-sustaining solenoid which is adapted so that when applying an operating current to a coil, a moving iron core disposed in the coil is attracted into contact with a fixed receiver. A magnetic yoke is provided to extend between the fixed receiver and the end portion of the moving iron core projecting out of the coil, and a permanent magnet is disposed on the magnetic yoke at least at one end in the direction of movement of the moving iron core. When the moving iron core is held in contact with the fixed receiver, magnetic fluxes emanating from the permanent magnet mostly pass through the moving iron core, the fixed receiver and the magnetic yoke, and even if the operating current is cut off, the moving iron core is retained in contact with the fixed receiver. A magnetic gap is provided through which the magnetic fluxes of the permanent magnet mostly pass when the moving iron core is out of contact with the fixed receiver, and magnetic flux resulting from the application of the operating current pass through the magnetic gap.

摘要翻译： 一种自维持电磁阀，其适于使得当向线圈施加工作电流时，设置在线圈中的移动铁芯被吸引与固定接收器接触。 磁轭被设置成在固定接收器和从线圈伸出的移动铁芯的端部之间延伸，永磁体至少在移动铁的运动方向的一端设置在磁轭上 核心。 当移动的铁芯与固定接收器保持接触时，从永磁体发出的磁通大部分通过移动铁芯，固定接收器和磁轭，即使工作电流被切断，移动铁 核心与固定接收器保持接触。 提供磁隙，当移动的铁芯与固定接收器脱离接触时，永磁体的磁通大致通过该磁隙，并且由施加工作电流产生的磁通量通过磁隙。

公开(公告)号：US4306207A

公开(公告)日：1981-12-15

申请号：US147446

申请日：1980-05-07

申请人： Kiichiro Tada ,  Takao Hasumuro

发明人： Kiichiro Tada ,  Takao Hasumuro

IPC分类号： H01F7/122 ,  H01F7/16

CPC分类号： H01F7/1615

摘要： By applying an operating current to an operating coil, a moving iron core disposed in the operating coil is attracted deeply thereinto to butt against a fixed receiver. By applying a return current to a return coil, the moving iron core is pulled away from the fixed receiver. At least one of the moving iron core and the fixed receiver is divided into two parts in the direction of travel of the permanent magnet and a permanent magnet is sandwiched between the two parts to couple them together. The permanent magnet is magnetized by an operating magnetic field set up by the operating current and demagnetized by the return current.

摘要翻译： 通过对工作线圈施加工作电流，设置在工作线圈中的移动铁芯被深深吸引到与固定接收器对接。 通过向返回线圈施加回流电流，移动的铁芯从固定接收器拉出。 移动铁芯和固定接收器中的至少一个在永磁体的行进方向上分成两部分，并且永磁体夹在两个部分之间以将它们连接在一起。 永磁体由通过工作电流设置的工作磁场而被磁化，并由回流消磁。