| 摘要 |
A thermostat for an electric hotplate has a casing formed in one piece from an insulating material with a bottom and four side walls defining one open-sided recess therebetween, a snap-action switch, a support, and a bimetallic strip mounted on the support and acting on the switch, the casing having slots formed therein for fixing the switch, support, and strip in the recess. the recess remains open at the one side when the casing is mounted on the hotplate. Interfitting locking structure on the support and formed interiorly on at least one of the side walls can be brought into mutual engagement by movement of the support substantially parallel to the bottom of the casing, whereby the bimetallic strip is safely and securely held in the recess notwithstanding the absence of a cover for the recess. The thermostat is mounted in an unheated central zone of the electric hotplate, and the thermal coupling between the thermostat and the hotplate can be controlled by orienting the open-side of the recess toward or parallel to the underside of the electric hotplate. |
