| 摘要 |
<p>PURPOSE: A vent sensor for a system window is provided to satisfy a crime preventing function and a ventilation function in a state a window is open, since a vent sensor is attached to one side of a sliding window frame, so the window frame slopes by a given angle. CONSTITUTION: A vent sensor(100) for a system window comprises a plastic case(110), a non-conductive cylindrical structure(120), a plurality of conductors(130), a plurality of metallic balls, a connecting terminal(150), an electrical wire(160), and an angle regulating unit(170). One side of the plastic case is attached to a sliding window frame. The non-conductive cylindrical structure is fixed in the case. The conductors are formed on the inner part of the cylindrical structure. The metallic balls control the current flow between conductors filled in the cylindrical structure. The connecting terminal is installed on one side of the case and electrically connects a security system to the conductors.</p> |
