| 摘要 |
PROBLEM TO BE SOLVED: To provide a switch element which reliably operates in an emergency state such as application of heat, moisture or air pressure change.SOLUTION: A switch element according to the present invention comprises: a pair of conduction parts arranged apart from each other; and an expansion material part which is arranged adjacent to one of the pair of conduction parts and whose volume can be increased. At a time of emergency, the expansion material part expands to deform one of the pair of conduction parts so that the pair of conduction parts are connected to each other. In the switch element according to the present invention, the conduction parts are brought into conduction with each other due to the deformation of the conduction parts at the time of emergency, thereby enabling reliable switch operation.SELECTED DRAWING: Figure 2 |
