公开(公告)号：US20200049653A1

公开(公告)日：2020-02-13

申请号：US16656959

申请日：2019-10-18

Applicant: DENSO CORPORATION

Inventor： Makoto NAKAE ,  Shota IMADA

IPC: G01N27/407 ,  G01N33/00 ,  G01N27/409 ,  G01N27/41 ,  B01D53/94 ,  F01N3/10 ,  F01N11/00

Abstract: A gas sensor includes a sensor element, and the sensor element includes a bottomed tubular solid electrolyte, a detection electrode provided on an outer surface of the solid electrolyte, a reference electrode provided on an inner surface of the solid electrolyte. The detection electrode of the sensor element includes a detection electrode section provided at a position on a tip side of an axial direction, an attachment electrode section provided at a position on a base end side of the axial direction, and a lead electrode section provided at a position where the detection electrode section is connected to the attachment electrode section. An insulating layer is provided between a tube of the solid electrolyte and each of the attachment electrode section and the lead electrode section.

公开(公告)号：US20160018357A1

公开(公告)日：2016-01-21

申请号：US14793211

申请日：2015-07-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Hiroki NISHIJIMA ,  Yoshiharu MIYAKE ,  Haruki KONDO ,  Makoto NAKAE ,  Tooru TAKEUCHI ,  Masayuki TAMURA ,  Atsushi MURAI

IPC: G01N27/406 ,  G01N27/409 ,  G01N27/407

CPC classification number: G01N27/4067 ,  G01N27/4071 ,  G01N27/4077 ,  G01N27/409

Abstract: A gas sensor element having a porous protective layer with excellent water repellency. Provided is a gas sensor element having a detection portion, which has a stack of a solid electrolyte body having a pair of electrodes on opposite sides thereof and a heat generating body including a heat generating source, and a porous protective layer formed around the detection portion. The porous protective layer has thermal conductivity λ in the range of 0.2 to 5 W/mK, and has λCpp, which is the product of the thermal conductivity λ(W/mK), density ρ(g/m3), and specific heat Cp(J/gK), in the range of 5.3×105 to 2.1×107 WJ/m4K2.

Abstract translation: 具有防水性优异的多孔保护层的气体传感器元件。 本发明提供一种具有检测部分的气体传感器元件，该检测部分具有在其相对侧上具有一对电极的固体电解质体的堆叠和包括发热源的发热体，以及形成在检测部分周围的多孔保护层 。 多孔保护层的热导率λ在0.2〜5W / mK的范围内，λCpp为导热系数λ（W / mK），密度（g / m3），比热 Cp（J / gK）在5.3×105〜2.1×107WJ / m4K2的范围内。