| 摘要 |
<p>Thermal actuators having a low temperature differential generally have a weak snap action. To overcome the problem, a snap action thermal actuator (10) utilizes a pair of mechanically coupled bimetallic members (12, 14) having different temperature characteristics to provide a fast and positive snap action thermal actuator even when a low temperature differential is required. The actuator is particularly useful for controlling the operation of electrical contacts (20, 22) in a thermal switch.</p> |
