| 摘要 |
<p>A relay designed for closing or opening an electrical circuit when the ambient temperature deflects from specified values. The relay comprises metallic base (1) and housing (2) forming a sealed chamber. Two solid electrodes (3,4) are fixed in the base by insulators.(5). The chamber includes a fixed contact (8) attached to the end of one electrode (3) and the thermally sensitive switching mechanism attached by a console to the end of the other electrode. The switching mechanism consists of a snap-action bimetallic disk (10), a support member (12), and a conducting spring disk (10) having a movable contact thereon (9). The said disk has a hole (18) in its dome center and symmetrically arranged openings (19) in the periphery, is freely positioned on the spring disk having projection stoppers (16,17) and a fixed tongue element (14) provided thereon.</p> |
