Electromagnetic-permanent magnet composite release

• Main Authors: ZOU YU, CHI XIAOBING, SU YIFENG, XIE ZHENJUN, SONG YINGUAN
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The utility model relates to an electromagnetic-permanent magnet composite release, which comprises a static assembly and a moving assembly, the moving assembly is movably inserted into the inner side of the static assembly; the static assembly comprises a permanent magnet, a main coil and an auxiliary coil, and the main coil and the auxiliary coil are coaxially arranged; the permanent magnet is arranged above the main coil; and during electrification, magnetic flux generated by the secondary coil and the main coil is communicated with the excitation direction of the permanent magnet so as to be superposed, so that the motion assembly is driven to move quickly. Two groups of permanent magnets are added in a traditional electromagnetic loop, main coil magnetic flux and permanent magnet magnetic flux effects are superposed, and the action speed of the armature is improved; and meanwhile, the excitation direction of the permanent magnet is the same as the tripping magnetic flux direction, so that the time of an