The present invention relates to a fine dust sensor assembly, which prevents degradation of an output value due to attachment of fine dust to a light source or a light receiving element, and is not required to periodically remove dust. The fine dust sensor assembly of the present invention comprises: a housing (11) having an air passage (11a) through which air introduced from the outside flows; a fan motor (15) for introducing air to the air passage (11a) from the outside, and mounted inside the housing (11); a light source (21) for irradiating light to intersect the air flowing through the air passage (11a); and a light receiving sensor (25) for receiving light scattered by dust included in the air passing through the air passage (11a). The air passage (11a) has a cross-sectional area of a part where air is introduced from the outside larger than that of a part where the air intersects light irradiated from the light source (21).

    본 발명은 미세먼지가 광원이나 수광소자에 먼지가 부착으로 인하여 출력값이 저하되는 현상을 방지하고, 주기적으로 부착된 먼지를 제거하지 않아도 되는 미세먼지 감지 센서 어셈블리에 관한 것이다. 본 발명에 따른 미세먼지 감지 센서 어셈블리는, 외부로부터 유입된 공기가 유동하는 공기유로(11a)가 형성되는 하우징(11)과, 외부로부터 상기 공기유로(11a)로 공기를 유입시키고, 상기 하우징(11)의 내부에 장착되는 팬모터(15)와, 상기 공기유로(11a)를 유동하는 공기와 교차하도록 빛을 조사(照射)하는 광원(21)과, 상기 공기유로(11a)를 통과중인 공기에 포함된 먼지에 의해 산란된 광을 수광하는 수광센서(25)를 포함하고, 상기 공기유로(11a)는 외부로부터 유입되는 부위는 상기 광원(21)으로부터 조사된 빛과 교차하는 부위보다 단면적이 크게 형성되는 것을 특징으로 한다.


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    Title :

    SENSOR ASSEMBLY FOR PARTICULATE MATTER


    Additional title:

    미세먼지 감지 센서 어셈블리


    Contributors:
    YEON DONG WON (author) / KIM MYUNG JUN (author) / OH SANG HO (author) / LIM CHAE GEUN (author) / CHOI JUN HO (author)

    Publication date :

    2020-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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