| 摘要 |
Provided are a tripping mechanism for use in a surge protector and the surge protector comprising the tripping mechanism. The tripping mechanism (100) comprises a frame bracket (110) for use in holding at least one metal oxide rheostat (200), a tripping rod (120) pivotably arranged on the frame bracket and connected to one electrode (210) of the metal oxide rheostat via a low-temperature solder, and a slidable block (120) slidably arranged on the bracket frame between a first position and a second position and biasly pressed towards a tripping position. In a normal working state, the slidable block is maintained at the first position by the tripping rod countering the biasing pressure. In a tripped state, the slidable block slides towards the second position under the effect of the biasing pressure, causing the tripping rod to pivot along the direction away from the electrode of the metal oxide rheostat. Because the tripping mechanism pivots away from the electrode of the metal oxide rheostat when in the tripped state, the electrical distance between the tripping rod and the electrode is thus increased, and the reliability of electrical insulation between both is thus improved. |
