LINEAR-MOTION ELECTROMAGNETIC MECHANISM, RELAY, POWER DISTRIBUTION BOX, AND COMMUNICATION DEVICE

• Main Author: YAN, Guangchao
• Format: Patent
• Language: English; French; German
• Published: 28.05.2025
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

Embodiments of this application provide a linear motion electromagnetic mechanism (100), a relay (1000), a power distribution box (2000), and a communication device. In a linear motion electromagnetic mechanism (100), a first bipolar charging permanent magnet (120) and a second bipolar charging permanent magnet (130) are respectively disposed on two opposite inner walls of a frame-shaped portion (110a) of a magnetic yoke (110), and a first parallel magnetic field (129) and a second parallel magnetic field (139) that are in opposite directions are formed between the first bipolar charging permanent magnet (120) and the second bipolar charging permanent magnet (130). Two semi-ring portions of a powered-on coil (142) are subject to co-directional ampere forces, and the coil (142) drives a movable rack (141) to perform translation motion. The coil (142) is bi-directionally powered on, so that the movable rack (141) moves bi-directionally, to implement switching work of the relay (1000). A first moving iron core (143) and a second moving iron core (144) are configured to form a holding force on the movable rack (141) when the movable rack (141) is at a switch-on position or a switch-off position, to limit a position of the movable rack (141). In the linear motion electromagnetic mechanism (100), one magnetic field cavity provides bipolar magnetic fields, and the powered-on coil (142) is subject to the ampere forces in the bipolar magnetic fields to drive the movable rack (141) to translate, so that a small quantity of parts are used, and an overall structural thickness is smaller.