| 摘要 |
A switch includes a box with a button pivotally connected there and two terminal plates extend through a bottom of the box. A positioning member has an end fixedly connected to the box and the other end of the positioning member has a protrusion. A link is connected to an end of the button and has an engaging port so as to engage with a first end of a bimetal plate. A second end of the bimetal plate is connected to one of the terminal plates. When current overrides, the first end of bimetal plate pushes the link to pivot the button and moves over the protrusion of the positioning member. The first end of the bimetal plate is stopped by the protrusion to move back to its original position.
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