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    • 4. 发明授权
    • Gas sensor
    • 气体传感器
    • US07712349B2
    • 2010-05-11
    • US10581075
    • 2004-12-01
    • Hayato KatsudaYouichi HattoriYuichi KouyamaTakio Kojima
    • Hayato KatsudaYouichi HattoriYuichi KouyamaTakio Kojima
    • G01N9/00
    • G01N33/0009
    • The object of the present invention is to provide a gas sensor in which a gas detection element is mounted on a wiring substrate; in which a protective cap having gas inlets formed therein is attached to the wiring substrate; and which has a structure capable of effectively preventing emanation of gas from the wiring substrate and the protective cap. A gas sensor comprises a gas detecting element on a writing board where a protective cap with air vents is mounted. The sensor effectively prevents a gas from emanating from the wiring board and the protective cap. The wiring board where a plurality of gas detecting elements (8,9) are to be mounted is formed of a ceramic wiring board (2) excellent in heat resistance. The protective cap (3) having air vents (31 to 39) is formed of a metal excellent in heat resistance. The metal protective cap (3) is fitted to the ceramic wiring board (2) instead of using adhesive. In this way a gas sensor (1) is manufactured. Adoption of such a structure enables suppression of the gas emission from the ceramic wiring board (2) and the metal protective cap (3) effectively during the manufacturing step or in use of the gas sensor (1) attached to a car, thereby preventing lowering of the gas detection accuracy or early deterioration of the gas detecting elements (8,9).
    • 本发明的目的是提供一种气体传感器,其中气体检测元件安装在布线基板上; 其中在其中形成有气体入口的保护盖附接到布线基板; 并且其具有能够有效地防止从布线基板和保护盖发出气体的结构。 气体传感器包括在书写板上的气体检测元件,其中安装有通气孔的保护盖。 该传感器有效地防止气体从布线板和保护盖发出。 要安装多个气体检测元件(8,9)的布线板由耐热性优异的陶瓷布线板(2)形成。 具有通风口(31〜39)的保护盖(3)由耐热性优异的金属形成。 金属保护盖(3)安装在陶瓷布线板(2)上,而不是使用粘合剂。 以这种方式制造气体传感器(1)。 采用这种结构能够在制造步骤期间有效地抑制来自陶瓷布线板(2)和金属保护盖(3)的气体排放或者使用安装在汽车上的气体传感器(1),从而防止降低 的气体检测精度或气体检测元件(8,9)的早期劣化。
    • 10. 发明申请
    • GAS SENSOR
    • 气体传感器
    • US20100147685A1
    • 2010-06-17
    • US12527824
    • 2008-12-12
    • Koichi IkawaMasahito KidaShinichiro KitoYoshinori TsujimuraTakio Kojima
    • Koichi IkawaMasahito KidaShinichiro KitoYoshinori TsujimuraTakio Kojima
    • G01N27/26
    • G01N27/128
    • Between a gas sensing layer (4) and a base member (15) composed of a silicon substrate (2) and an insulating coat layer (3), there is formed an adhesion layer 7, to improve the adhesion therebetween, and to prevent separation. The gas sensing layer (4) and sensing electrodes (6) are electrically connected by abutment of a confronting surface (61) of sensing electrodes (6) confronting the gas sensing layer (4) and sides surfaces of the sensing electrodes on both sides, on the gas sensing layer (4), and accordingly the gas sensor properly senses an electric characteristic of the gas sensing layer (4) varied in accordance with a concentration variation of a specified gas. Furthermore, the sensing electrodes (6) are in contact with the gas sensing layer (4), but the sensing electrodes are not in contact with the adhesion layer (7). Therefore, the adhesion layer (7) need not be a complete insulating layer, and it is possible to use, as the adhesion layer, an incomplete insulating film or a conductive film, so that options of the adhesion layer (7) are increased.
    • 在气体感测层(4)和由硅衬底(2)和绝缘涂层(3)组成的基底构件(15)之间形成粘合层7,以改善它们之间的粘附性并防止分离 。 气体感测层(4)和感测电极(6)通过面对气体感测层(4)的感测电极(6)的相对表面(61)和两侧的感测电极的侧表面的邻接电连接, 在气体感测层(4)上,因此气体传感器适当地感测根据特定气体的浓度变化而变化的气体感测层(4)的电特性。 此外,感测电极(6)与气体感测层(4)接触,但感测电极不与粘附层(7)接触。 因此,粘合层(7)不需要是完整的绝缘层,并且可以使用不完全绝缘膜或导电膜作为粘合层,使得粘附层(7)的选项增加。