| 摘要 |
A switch device includes a body with a switch member pivotably engaged with a top opening of the body and a first terminal and a second terminal respectively extend through a bottom of the body. A bimetallic plate has a first end fixed to the first terminal and includes a first contact point which is located above a second contact point on the second terminal. A link has an upper end pivotably connected with a protrusion on an underside of the switch member and a lower end of the link clamps the second end of the bimetallic plate. The protrusion includes an engaging hole and an extension slot is in communication with the engaging hole. The upper end of the link has a biasing plate which contacts a contact portion in the body so as to provide a potential force to keep the link upright. When overload, the bimetallic plate is deformed upward and the upper end of the link is moved into the extension slot to ensure that the bimetallic plate is deformed completely.
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