A retaining force adjustable parallel permanent magnetic actuator

The invention discloses a retaining force adjustable parallel permanent magnetic actuator relating to the technical field of a high-voltage electrical apparatus. The retaining force adjustable parallel permanent magnetic actuator includes an upper yoke, self-lubricating bearings, a close-open coil, an ejector pin, a movable iron core, an outer yoke, a permanent magnet, an inner yoke and a lower yoke, and is characterized in that the self-lubricating bearing is embedded to the center hole of each of the upper yoke and the lower yoke, and the upper yoke and the lower yoke are fixed to the reducing outer yoke; the permanent magnet is sealed by a structural adhesive between the outer yoke and the inner yoke which has a chamfer at the lower side; the ejector pin is fixed to the movable iron core having a chamfer and a protrusion at the lower side, and passes through the upper yoke and the lower yoke; and the close-open coil is positioned in an upper cavity of the inner yoke. The close-open speed is improved by the formation of two parallel magnetic paths with the main magnetic path, and the formation of a groove on a face where the upper yoke attracts the movable iron core, and also the energy consumption is reduced and the capacity of the control power supply is reduced. The invention plays a role of improving reliability of the switching device and promoting energy conservation.