PARTICULATE CONCENTRATION DETECTOR

PARTICULATE CONCENTRATION DETECTOR

To restrain variation of detection accuracy of a sensor due to variation in push-in pressure of air outside a cabin.SOLUTION: A particulate concentration detector comprises an air conditioning case 21 and a sensor case 52 which stores a concentration detection part 51 which detects concentration of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KAWAI TAKAMASA, ISHIGURO SHUNSUKE, NAGANO TOSHIYA, ISHIYAMA NAOTAKA, KUMADA TATSUMI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:To restrain variation of detection accuracy of a sensor due to variation in push-in pressure of air outside a cabin.SOLUTION: A particulate concentration detector comprises an air conditioning case 21 and a sensor case 52 which stores a concentration detection part 51 which detects concentration of particulate substance contained in air outside a cabin flowing an air passage 24. The sensor case 52 includes a sensor flow inlet 521 which introduces from the air passage 24 into interior of the sensor case 52 and a sensor flow outlet 522 which flows out air of the interior of the sensor case 52. The sensor flow inlet 521 and the sensor flow outlet 522 open while facing to the air passage 24 of the respective air conditioning case 21.SELECTED DRAWING: Figure 4 【課題】車室外の空気の押し込み圧力の変動によるセンサの検出精度の変動を抑制する。【解決手段】空調ケース２１と、空気通路２４を流れる車室外の空気に含まれる粒子状物質の濃度を検出する濃度検出部５１を収納するセンサケース５２を備え、センサケース５２は、空気通路２４からセンサケース５２の内部に導入するセンサ流入口５２１と、センサケース５２の内部の空気を流出させるセンサ流出口５２２を有し、センサ流入口５２１およびセンサ流出口５２２は、それぞれ空調ケース２１の空気通路２４に向いて開口している。【選択図】図４