| 摘要 |
PURPOSE: A leak of a differential fire sensor is provided to improve the productivity, the workability, and the durability of the leak, and to achieve the standardization thereof. CONSTITUTION: The leak(100) of the fire sensor is an air discharge tube installed at a part of an air chamber for eliminating an expansion pressure of air due to a temperature variation. The leak is switched on by driving contact point by using an expansion pressure according to the heat expansion of air by a heat effect. The leak consists of an inner shell(120) fitted with several core lines(130), and an elastic outer shell(110). Therefore, the expansion pressure of the air generated in the air chamber is able to be discharged via gabs between the core lines.
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