HEAT SENSOR

• Main Author: MATSUDA DAIZO
• Format: Patent
• Language: English; Japanese
• Published: 27.06.2023
• Subjects: ALARM SYSTEMS; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS

To provide a heat sensor with which a translucent member such as an element support member and a top plate can be easily aligned and light, which is transmitted through the translucent member, from a light source is easily visible in a top plate opening.SOLUTION: A heat sensor comprises: a case main body including an opening for storing a substrate on which a sensor for sensing heat and a light source are mounted; a case lid provided at a lower side of the case main body and consisting of a translucent member through which light from the light source is translucent; and a protector including a top plate positioned at a lower side of the case body and a protection part provided in the top plate and protecting the sensor. The case lid includes a hole part through which the sensor is inserted, and the hole part includes a cylindrical portion extending downward. A top plate opening, in which the cylindrical portion is disposed, is provided in the top plate and the cylindrical portion is formed with such a height as to be flush with a bottom face of the top plate.SELECTED DRAWING: Figure 11 【課題】素子サポート部材のような透光部材と天板との位置合わせが容易にでき、かつ、天板開口部で、透光部材を透過した光源からの光が視認しやすい熱感知器を提供する。【解決手段】熱感知器は、熱を感知するセンサと光源とが実装される基板を収納する、開口部を有するケース本体と、ケース本体の下方に設けられ、光源の光を透光する透光部材で構成されるケース蓋と、ケース蓋の下方に位置する天板と、該天板に設けられ、センサを保護する保護部とを有するプロテクタと、を備える。ケース蓋は、センサが挿通される孔部を有し、該孔部は、下方に向かって延出した筒状部を備え、天板には、筒状部が配置される天板開口部が設けられ、筒状部は、天板の下面と面一になる高さで形成されている。【選択図】図１１