| 摘要 |
A trigger switch, comprising: a housing (10); a circuit board (20) fixed to the housing (10), wherein the circuit board (20) is provided thereon with a plurality of fixed contacts (21); a slide block (30) slidably arranged inside the housing (10) and provided thereon with two elastic contacts (41) connected to each other, wherein the elastic contacts (41) are in mutual cooperation with the fixed contacts (21) and are selectively connected to two of the plurality of fixed contacts (21); and a drive mechanism (50) in cooperation with the slide block (30) to drive the slide block (30) to slide. According to the trigger switch, the slide block (30) is driven to slide by the drive mechanism (50), so that the two elastic contacts (41) are connected to two of the plurality of fixed contacts (21); and different signals are sent according to different fixed contacts (21) which are connected, for example, trigger signals triggering the forward rotation and reverse rotation of a brushless motor. The switching between different signal states is realized using a simple mechanical drive structure, so that the cost is low, the action is reliable, and the service life is longer compared with existing touch switches or slide switches. |
