| 摘要 |
A passive temperature-sensitive sensing element comprises a positive electrode, a negative electrode, an electrolyte formed by heating or a molten salt electrolyte, and an external housing. One end of each of the positive electrode and the negative electrode is connected to a fire extinguishing device or an alarming apparatus. The electrolyte formed by heating is arranged between the positive electrode and negative electrode, and the housing is arranged outside the electrolyte formed by heating. The passive temperature-sensitive sensing element provided by the present invention can still be normally started in a case in which there is no power supply or after a power failure and has advantages such as low temperature resistance, humidity resistance, a simple structure, a reliable action, high sensitivity, and false alarm prevention, so that the passive temperature-sensitive sensing element is applicable to various electrically-started fire extinguishing systems. In addition, after connected to the alarming apparatus or a conversion apparatus, the passive temperature-sensitive sensing element can also be used as a fire detector. |
