公开(公告)号：US20130075256A1

公开(公告)日：2013-03-28

申请号：US13628242

申请日：2012-09-27

Applicant: DENSO CORPORATION

Inventor： Masami SAITOU ,  Namitsugu FUJII ,  Norikazu KAJIYAMA

IPC: G01N27/407 ,  H01G9/025

CPC classification number: H01G9/0036 ,  G01N27/407 ,  G01N27/4074 ,  G01N27/4077

Abstract: A gas sensor element includes an insulating ceramic base, a solid electrolyte body, and a heating element. The solid electrolyte body is disposed in an opening of the insulating ceramic base and has a measuring electrode affixed to one of major surfaces thereof and a reference electrode affixed to the other major surface. The measuring electrode is exposed to gas to be measured. The reference electrode is exposed to a reference gas. The heating element works to activate the solid electrolyte body and is mounted on one of opposed surfaces of the insulating ceramic base on the same side as the major surface of the solid electrolyte body on which the reference electrode is disposed. Specifically, the insulating ceramic base is located between the solid electrolyte body and the heating element, thereby ensuring a desired degree of electric insulation between the heating element and the reference electrode.

Abstract translation: 气体传感器元件包括绝缘陶瓷基体，固体电解质体和加热元件。 固体电解质体设置在绝缘陶瓷基体的开口中，并且具有固定到其主表面之一的测量电极和固定到另一主表面的参考电极。 测量电极暴露于要测量的气体。 参考电极暴露于参考气体。 加热元件用于激活固体电解质体，并且与绝缘陶瓷基体的与设置有参考电极的固体电解质体的主表面相同的一侧安装在一个相对的表面上。 具体地说，绝缘陶瓷基座位于固体电解质体和加热元件之间，从而确保加热元件与参考电极之间所需的电绝缘程度。

公开(公告)号：US20170108463A1

公开(公告)日：2017-04-20

申请号：US15322781

申请日：2015-06-30

Applicant: DENSO CORPORATION

Inventor： Norikazu KAJIYAMA ,  Makoto ITO ,  Yasufumi SUZUKI

IPC: G01N27/407 ,  G01N27/406

CPC classification number: G01N27/4077 ,  G01N27/4067 ,  G01N27/41

Abstract: A gas sensor is provided which has a rapid heating property and which can detect A/F ratio with high accuracy and can detect specifically a stoichiometric environment with high accuracy. The gas sensor has a limiting current type gas sensor element. The gas sensor element has a cup-shaped solid electrolyte, a reference electrode formed on an inside surface of the solid electrolyte, a measuring electrode formed on an outside surface of the solid electrolyte and a heater. The heater is disposed inside the solid electrolyte so that a tip end thereof contacts the inside surface of the solid electrolyte. The gas sensor outputs the limiting current value depending on an oxygen concentration in exhaust gases by applying a predetermined voltage between the reference electrode and the measuring electrode. The measuring electrode, which a length thereof in a direction is 0.5 mm to 3.0 mm, is housed in a range 0.5 mm to 7.5 mm from a tip end of the solid electrolyte in the direction.

公开(公告)号：US20140305798A1

公开(公告)日：2014-10-16

申请号：US14250945

申请日：2014-04-11

Applicant: DENSO CORPORATION

Inventor： Masami SAITOU ,  Namitsugu FUJII ,  Norikazu KAJIYAMA

IPC: G01N27/407 ,  G01N27/406

CPC classification number: G01N27/4072 ,  G01N27/4067 ,  G01N27/4073 ,  G01N27/409

Abstract: An A/F sensor element includes a substrate made of an insulating ceramic having a bottomed cylindrical shape, an electrolyte part made of a solid electrolyte, and a pair of electrode portions. The electrolyte part is embedded in at least a portion of the side wall of the substrate. The A/F sensor element is used by inserting a rod-like heater in the substrate having the bottomed cylindrical shape. The substrate is formed of the insulating ceramic at a contact position to the heater within the substrate. In a manufacturing of the substrate, a molded body having a space for a forming position of the electrolyte part is formed by using substrate-forming clay, and then the molded body is molded by filling electrolyte-forming clay into the space.

Abstract translation: A / F传感器元件包括由具有有底圆柱形状的绝缘陶瓷制成的基板，由固体电解质制成的电解质部分和一对电极部分。 电解质部分嵌入在基板的侧壁的至少一部分中。 A / F传感器元件通过在具有有底圆柱形状的基板中插入棒状加热器来使用。 衬底在与衬底内的加热器的接触位置处由绝缘陶瓷形成。 在基板的制造中，通过使用基板形成粘土形成具有电解质部分的形成位置的空间的成型体，然后通过将电解质形成的粘土填充到空间中来模制成型体。

公开(公告)号：US20150293051A1

公开(公告)日：2015-10-15

申请号：US14646914

申请日：2013-11-18

Applicant: DENSO CORPORATION ,  KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

Inventor： Norikazu KAJIYAMA ,  Tadashi NAKAMURA

IPC: G01N27/407

CPC classification number: G01N27/4075

Abstract: In a gas sensor element 1 capable of detecting a concentration of a specific gas contained in a measuring target gas, an electrode 12 formed on a solid electrolyte body 11 having an oxygen ion conductivity is made of noble metal and solid electrolyte. The electrode 12 has a noble metal part 121 made of the noble metal, a solid electrolyte part 122 made of the solid electrolyte, and a mixture part 123 made of the noble metal and the solid electrolyte when a cross-sectional surface of the electrode 12 is observed. The mixture part 123 is formed along an interface part 120 between the noble metal part 121 and the solid electrolyte part 122.

Abstract translation: 在能够检测测定对象气体中所含的比气体浓度的气体传感器元件1中，形成有具有氧离子传导性的固体电解质体11的电极12由贵金属和固体电解质构成。 电极12具有由贵金属制成的贵金属部分121，由固体电解质制成的固体电解质部分122和由贵金属和固体电解质制成的混合部分123，当电极12的横截面 被观察。 混合物部分123沿着贵金属部件121和固体电解质部分122之间的界面部分120形成。

公开(公告)号：US20140305797A1

公开(公告)日：2014-10-16

申请号：US14250927

申请日：2014-04-11

Applicant: DENSO CORPORATION

Inventor： Masami SAITOU ,  Namitsugu FUJII ,  Norikazu KAJIYAMA

IPC: G01N27/409 ,  B29C45/00 ,  C04B35/64

CPC classification number: G01N27/409 ,  B29C45/0001 ,  B32B18/00 ,  C04B35/622 ,  C04B35/64 ,  C04B2235/3246 ,  C04B2235/6022 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/68 ,  G01N27/4073

Abstract: A lambda sensor element includes a substrate made of an insulating ceramic having a bottomed cylindrical shape, an electrolyte part made of a solid electrolyte, and a pair of electrode portions. The electrolyte part is embedded in at least a portion of the side wall of the substrate. The lambda sensor element is used by inserting a rod-like heater in the substrate having the bottomed cylindrical shape. The substrate is formed of the insulating ceramic at a contact position to the heater within the substrate. In a manufacturing of the substrate, a molded body having a space for a forming position of the electrolyte part is formed by using substrate-forming clay, and then the molded body is molded by filling electrolyte-forming clay into the space.

Abstract translation: λ传感器元件包括由具有有底圆柱形状的绝缘陶瓷制成的基板，由固体电解质制成的电解质部分和一对电极部分。 电解质部分嵌入在基板的侧壁的至少一部分中。 通过将杆状加热器插入具有有底圆柱形状的基板中来使用λ传感器元件。 衬底在与衬底内的加热器的接触位置处由绝缘陶瓷形成。 在基板的制造中，通过使用基板形成粘土形成具有电解质部分的形成位置的空间的成型体，然后通过将电解质形成的粘土填充到空间中来模制成型体。

公开(公告)号：US20130240354A1

公开(公告)日：2013-09-19

申请号：US13836360

申请日：2013-03-15

Applicant: DENSO CORPORATION

Inventor： Masami SAITOU ,  Namitsugu FUJII ,  Norikazu KAJIYAMA

IPC: C04B35/10 ,  G01N27/407

CPC classification number: C04B35/10 ,  B28B1/008 ,  B28B1/24 ,  C04B35/48 ,  C04B37/001 ,  C04B2235/6022 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/765 ,  C04B2237/78 ,  G01N27/407

Abstract: A gas sensor element includes a basal body, at least one solid electrolyte portion and a pair of electrodes. The basal body has a bottomed tubular shape and is made of an electrically insulative ceramic material. The basal body has a side wall and a bottom wall. The at least one solid electrolyte portion is formed in the bottom wall or the side wall of the basal body. The pair of electrodes are opposed to each other with the at least one solid electrolyte portion interposed therebetween. The difference in surface level between the basal body and the at least one solid electrolyte portion at a boundary therebetween is less than or equal to 30 μm.

Abstract translation: 气体传感器元件包括基体，至少一个固体电解质部分和一对电极。 基体具有有底的管状，并由电绝缘陶瓷材料制成。 基体具有侧壁和底壁。 至少一个固体电解质部分形成在基体的底壁或侧壁中。 一对电极彼此相对，其间插入至少一个固体电解质部分。 在它们之间的边界处的基体和至少一个固体电解质部分之间的表面水平差异小于或等于30μm。