TRIP SYSTEM INTEGRATING LEAKAGE TRIP AND ELECTROMAGNETIC TRIP

摘要

A trip system integrating a leakage trip and an electromagnetic trip, relating to the field of low-voltage circuit terminal electrical equipment. The trip system comprises a magnet yoke (1), a static iron core (2), a movable iron core (3), an iron core spring (4), a mandrel (5) and a leakage coil (6), a coil bobbin (7) and an electromagnetic coil (8). The static core (2), the movable core (3), the iron core spring (4) and the mandrel (5) are arranged in a through hole (71) which is arranged in the middle of the coil bobbin (7). The electromagnetic coil (8) is arranged around the outer circumference of the leakage coil (6), and the leakage coil (6) and the electromagnetic coil (8) share the same static core, movable core, iron core spring and mandrel. The magnet yoke (1) comprises a first side (11), a second side (12) and a lower bottom side (13), wherein the first side (11) and the second side (12) are respectively located on either side of the coil bobbin (7). The trip system has the advantages of being small in size and easy to miniaturize. By using the integrated magnet yoke, the process is simpler and the risk of high temperature is reduced; in addition, the movable and the static core can be mounted from both sides of the coil bobbin, so that the product can be easily assembled.