Claims (27)
一種煙感測器，包括：煙感測室，其避免光線從外部進入，並且容許煙霧進出；發光部，對該煙感測室內的複數之檢測區域照射光線；光接收部，來自該發光部的直接光並無入射至此，而所入射的是流入各該檢測區域的煙霧所造成的散射光；判定部，根據該光接收部之輸出，以判定煙霧是否已進入該煙感測室內；於該發光部及該光接收部中之至少任一方，一體設置有光侷限構件，該光侷限構件限制光的範圍，以使複數之該檢測區域不會重疊。
A smoke sensor comprising: a smoke sensing chamber that prevents light from entering from outside and allows smoke to enter and exit; a light emitting portion that illuminates light in a plurality of detection regions of the smoke sensing chamber; and a light receiving portion from the light emitting portion The direct light is not incident thereto, and the incident light is the scattered light caused by the smoke flowing into each of the detection areas; the determining unit determines whether the smoke has entered the smoke sensing chamber according to the output of the light receiving portion; At least one of the light-emitting portion and the light-receiving portion is integrally provided with an optical confinement member that limits the range of light so that the plurality of detection regions do not overlap.
如申請專利範圍第1項之煙感測器，其中，對於1個該光接收部，設置複數之該發光部，複數之該發光部對各自對應之檢測區域照射光線。
A smoke sensor according to claim 1, wherein a plurality of the light-emitting portions are provided for one of the light-receiving portions, and the plurality of light-emitting portions irradiate light to the respective detection regions.
如申請專利範圍第2項之煙感測器，其中，各個該發光部的光軸與該光接收部的光軸所構成之交叉角，係設定為各自互異的角度。
The smoke sensor of claim 2, wherein an angle of intersection between an optical axis of each of the light-emitting portions and an optical axis of the light-receiving portion is set to an angle different from each other.
如申請專利範圍第2項之煙感測器，其中，於包含複數之該發光部的光軸及該光接收部之光軸的平面上，複數之該發光部配置於該光接收部之光軸的同一側。
The smoke sensor of claim 2, wherein the plurality of light-emitting portions are disposed on the light-receiving portion on a plane including the optical axis of the plurality of light-emitting portions and the optical axis of the light-receiving portion The same side of the shaft.
如申請專利範圍第3項之煙感測器，其中，於包含複數之該發光部的光軸及該光接收部之光軸的平面上，複數之該發光部配置於該光接收部之光軸的同一側。
The smoke sensor of claim 3, wherein the plurality of light-emitting portions are disposed in the light-receiving portion on a plane including the optical axis of the plurality of light-emitting portions and the optical axis of the light-receiving portion The same side of the shaft.
如申請專利範圍第2項之煙感測器，其中，於包含複數之該發光部的光軸及該光接收部之光軸的平面上，複數之該發光部配置於該光接收部之光軸的兩側。
The smoke sensor of claim 2, wherein the plurality of light-emitting portions are disposed on the light-receiving portion on a plane including the optical axis of the plurality of light-emitting portions and the optical axis of the light-receiving portion Both sides of the shaft.
如申請專利範圍第3項之煙感測器，其中，於包含複數之該發光部的
光軸及該光接收部之光軸的平面上，複數之該發光部配置於該光接收部之光軸的兩側。
The smoke sensor of claim 3, wherein the plurality of the light-emitting portions are included
On the plane of the optical axis and the optical axis of the light receiving portion, a plurality of the light emitting portions are disposed on both sides of the optical axis of the light receiving portion.
如申請專利範圍第1項之煙感測器，其中，該判定部控制複數之該發光部之發光，使複數之該發光部不會同時發光；該判定部根據使複數之該發光部之各個分別發光之狀態下的該光接收部之輸出，判定該煙感測室內的狀態。
The smoke sensor of claim 1, wherein the determining unit controls the plurality of light-emitting portions to emit light, so that the plurality of light-emitting portions do not emit light at the same time; and the determining unit determines each of the plurality of light-emitting portions The output of the light receiving unit in the state of being illuminated is determined to determine the state of the inside of the smoke sensing chamber.
如申請專利範圍第8項之煙感測器，其中，該判定部使對應於該檢測區域之該發光部，以短於煙霧以外之異物在複數之該檢測區域之間移動所需之移動時間的時間間隔發光；若於該判定部使該發光部之任一發光之狀態下，該光接收部之輸出超過臨界值，而且在使其他之該發光部發光之狀態下，該光接收部之輸出小於該臨界值，則該判定部判斷係煙霧以外之異物進入了該煙感測室內。
The smoke sensor of claim 8, wherein the determining unit causes the light-emitting portion corresponding to the detection region to move the movement time between the plurality of detection regions shorter than the foreign matter other than the smoke. When the determination unit causes any of the light-emitting portions to emit light, the output of the light-receiving portion exceeds a critical value, and the light-receiving portion is in a state in which the other light-emitting portion is caused to emit light. When the output is smaller than the critical value, the determination unit determines that foreign matter other than smoke has entered the smoke sensing chamber.
如申請專利範圍第8項之煙感測器，其中，該判定部使對應之該發光部，以短於煙霧以外之異物在複數之該檢測區域之間移動所需之移動時間的時間間隔發光；若於該判定部使複數之該發光部之各個分別發光之狀態下，該光接收部之輸出全部超過臨界值，則該判定部判斷係煙霧進入了該煙感測室內。
The smoke sensor of claim 8, wherein the determining unit causes the corresponding light emitting portion to emit light at a time interval shorter than a moving time required for the foreign matter other than the smoke to move between the plurality of detection regions When the determination unit causes each of the plurality of light-emitting portions to emit light, and the output of the light-receiving portion exceeds a critical value, the determination unit determines that the smoke has entered the smoke sensing chamber.
如申請專利範圍第8項之煙感測器，其中，該判定部使複數之該發光部間歇性地發光，而根據該光接收部之輸出，進行判定動作。
The smoke sensor of claim 8, wherein the determination unit intermittently emits the plurality of light-emitting portions, and performs a determination operation based on an output of the light-receiving portion.
如申請專利範圍第11項之煙感測器，其中，該判定部於未測出狀態下，使該發光部之任一間歇性地發光；若於該發光部之任一發光之狀態下，該光接收部之輸出超過臨界值，則該判定部使其他之該發光部之各個，分別以短於煙霧以外之異物在複數之該檢測區域之間移動所需之移動時間的時間間隔發光。
The smoke sensor of claim 11, wherein the determining unit causes any of the light emitting portions to emit light intermittently in an undetected state; and in a state in which the light emitting portion emits light, When the output of the light receiving unit exceeds the critical value, the determining unit causes each of the other light emitting units to emit light at a time interval shorter than a moving time required for the foreign matter other than the smoke to move between the plurality of detection regions.
如申請專利範圍第2、4~8、11、12項中任一項之煙感測器，其中，各個該發光部之光軸與該光接收部之光軸所構成之交叉角，係設定為各自互異的角度；該判定部藉由比較該光接收部之輸出與臨界值之間的高低，以判定是否有煙霧已進入該煙感測室內；若該交叉角相對較小之該發光部發光之狀態下該光接收部之輸出，與該交叉角相對較大之該發光部發光之狀態下該光接收部之輸出的比值，大於指定之基準值，則該判定部判別進入到煙感測室內的煙霧係黑煙，並降低該臨界值。
A smoke sensor according to any one of claims 2, 4 to 8, 11, or 12, wherein an intersection angle between an optical axis of each of the light-emitting portions and an optical axis of the light-receiving portion is set The angles are different from each other; the determining unit determines whether or not smoke has entered the smoke sensing chamber by comparing the level between the output of the light receiving portion and the threshold; if the crossing angle is relatively small, the light is emitted When the output of the light receiving portion is in a state in which the light is emitted, and the ratio of the output of the light receiving portion in a state where the light emitting portion has a relatively large crossing angle is greater than a predetermined reference value, the determining portion determines that the smoke is entered. The smoke in the room is sensed as black smoke and the threshold is lowered.
如申請專利範圍第13項之煙感測器，其中，該判定部使該交叉角相對較小之該發光部的發光時間及發光光量中之至少任一方，大於該交叉角相對較大之該發光部。
The smoke sensor of claim 13, wherein the determining unit causes at least one of a light-emitting time and a light-emitting amount of the light-emitting portion having a relatively small crossing angle to be larger than the crossing angle Light emitting part.
如申請專利範圍第13項之煙感測器，其中，該判定部於未測出狀態下，僅使該交叉角相對較大之該發光部發光；若於該發光部發光之狀態下，該光接收部之輸出超過臨界值，則該判定部使其他之該發光部，以短於煙霧以外之異物在複數之該檢測區域之間移動所需之移動時間的時間間隔發光。
The smoke sensor of claim 13, wherein the determining unit emits only the light emitting portion having a relatively large crossing angle in an undetected state; and in a state in which the light emitting portion emits light, When the output of the light receiving unit exceeds the critical value, the determining unit causes the other light emitting unit to emit light at a time interval shorter than a moving time required for the foreign matter other than the smoke to move between the plurality of detection regions.
如申請專利範圍第14項之煙感測器，其中，該判定部於未測出狀態下，僅使該交叉角相對較大之該發光部發光；若於該發光部發光之狀態下，該光接收部之輸出超過臨界值，則該判定部使其他之該發光部，以短於煙霧以外之異物在複數之該檢測區域之間移動所需之移動時間的時間間隔發光。
The smoke sensor of claim 14, wherein the determining unit emits only the light emitting portion having a relatively large crossing angle in an undetected state; and in a state in which the light emitting portion emits light, When the output of the light receiving unit exceeds the critical value, the determining unit causes the other light emitting unit to emit light at a time interval shorter than a moving time required for the foreign matter other than the smoke to move between the plurality of detection regions.
如申請專利範圍第1項之煙感測器，其中，相對於1個該發光部，設置複數之該光接收部，複數之該光接收部接收來自各自對應之檢測區域的光線。
A smoke sensor according to claim 1, wherein a plurality of the light receiving portions are provided with respect to one of the light emitting portions, and the plurality of light receiving portions receive light rays from the respective detection regions.
如申請專利範圍第17項之煙感測器，其中，各個該光接收部之光軸與該發光部的光軸所構成之交叉角，係設定為各自互異的角度。
The smoke sensor of claim 17, wherein the angle of intersection between the optical axis of each of the light receiving portions and the optical axis of the light emitting portion is set to an angle different from each other.
如申請專利範圍第17項之煙感測器，其中，於包含該發光部之光軸及複數之該光接收部之光軸的平面上，複數之該光接收部配置於該發光部之光軸的同一側。
The smoke sensor of claim 17, wherein the plurality of light receiving portions are disposed on the light of the light emitting portion on a plane including the optical axis of the light emitting portion and the optical axis of the plurality of light receiving portions The same side of the shaft.
如申請專利範圍第18項之煙感測器，其中，於包含該發光部之光軸及複數之該光接收部之光軸的平面上，複數之該光接收部配置於該發光部之光軸的同一側。
The smoke sensor of claim 18, wherein a plurality of light receiving portions are disposed in the light emitting portion on a plane including an optical axis of the light emitting portion and a plurality of optical axes of the light receiving portion The same side of the shaft.
如申請專利範圍第17項之煙感測器，其中，於包含該發光部之光軸及複數之該光接收部之光軸的平面上，複數之該光接收部配置於該發光部之光軸的兩側。
The smoke sensor of claim 17, wherein the plurality of light receiving portions are disposed on the light of the light emitting portion on a plane including the optical axis of the light emitting portion and the optical axis of the plurality of light receiving portions Both sides of the shaft.
如申請專利範圍第18項之煙感測器，其中，於包含該發光部之光軸及複數之該光接收部之光軸的平面上，複數之該光接收部配置於該發光部之光軸的兩側。
The smoke sensor of claim 18, wherein a plurality of light receiving portions are disposed in the light emitting portion on a plane including an optical axis of the light emitting portion and a plurality of optical axes of the light receiving portion Both sides of the shaft.
如申請專利範圍第17、19~22項中任一項之煙感測器，其中，該判定部同時導入複數之該光接收部之輸出，並根據複數之該光接收部之輸出，判定該煙感測室內的狀態。
The smoke sensor according to any one of claims 17 to 19, wherein the determination unit simultaneously introduces an output of the plurality of light receiving units, and determines the output according to the output of the plurality of light receiving units. The smoke senses the state of the room.
如申請專利範圍第23項之煙感測器，其中，該判定部同時導入複數之該光接收部之輸出，若部分之該光接收部的輸出超出臨界值，且其他之該光接收部的輸出小於該臨界值，則該判定部判定係煙霧以外之異物進入了該煙感測室內。
The smoke sensor of claim 23, wherein the determining unit simultaneously introduces the output of the plurality of light receiving portions, if a portion of the output of the light receiving portion exceeds a critical value, and the other of the light receiving portions When the output is smaller than the threshold value, the determination unit determines that foreign matter other than smoke has entered the smoke sensing chamber.
如申請專利範圍第23項之煙感測器，其中，該判定部同時導入複數之該光接收部之輸出，若全部之該光接收部之輸出都超過臨界值，則判斷
係煙霧進入了該煙感測室內。
The smoke sensor of claim 23, wherein the determining unit simultaneously introduces the output of the plurality of light receiving portions, and if all the outputs of the light receiving portion exceed a critical value, determining
Smoke enters the smoke sensing chamber.
如申請專利範圍第25項之煙感測器，其中，各個該光接收部之光軸與該發光部之光軸所構成之交叉角，係設定為各自互異的角度；若該交叉角相對較小之該光接收部之輸出，與該交叉角相對較大之該光接收部之輸出之比值，大於指定之基準值，則該判定部判別進入到煙感測室內的煙霧係黑煙，並降低該臨界值。
The smoke sensor of claim 25, wherein an intersection angle between an optical axis of each of the light receiving portions and an optical axis of the light emitting portion is set to an angle different from each other; if the crossing angle is relatively When the output of the smaller light receiving portion and the output of the light receiving portion having a relatively large crossing angle are larger than a predetermined reference value, the determining portion determines the smoke smoke entering the smoke sensing chamber. And lower the threshold.
如申請專利範圍第26項之煙感測器，其中，該判定部於未檢測到有異物進入該煙感測室內的狀態下，僅使複數之該光接收部中之任一之該光接收部動作並導入其輸出，若所導入之輸出超過臨界值，則使其他該光接收部動作，並導入其輸出。
The smoke sensor of claim 26, wherein the determining unit receives only one of the plurality of light receiving portions in a state where no foreign matter is detected to enter the smoke sensing chamber. The unit operates and imports the output. If the imported output exceeds the threshold, the other light receiving unit is operated and the output is imported.