公开(公告)号：US06415647B1

公开(公告)日：2002-07-09

申请号：US09418604

申请日：1999-10-15

申请人： Hirokazu Yamada ,  Hiroaki Takaba ,  Takashi Kojima ,  Isao Watanabe

发明人： Hirokazu Yamada ,  Hiroaki Takaba ,  Takashi Kojima ,  Isao Watanabe

IPC分类号： G01N2746

CPC分类号： G01N27/4077 ,  G01N27/4062 ,  Y10T29/49826

摘要： An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.

摘要翻译： 提供了一种改进的气体传感器结构。 该气体传感器包括一个中空的壳体，其中设有一个气体检测元件，一个保护盖安装在外壳的一端，一个金属盖安装在外壳的另一端，一个绝缘体，其中引线的端部与 设置气体感测元件。 绝缘体使用垫圈弹性地保持在壳体的凸缘上。 保护盖在其端部焊接到壳体的端部的整个周边。

公开(公告)号：US20050155207A1

公开(公告)日：2005-07-21

申请号：US11028330

申请日：2005-01-04

申请人： Hirokazu Yamada ,  Takashi Kojima ,  Isao Watanabe

发明人： Hirokazu Yamada ,  Takashi Kojima ,  Isao Watanabe

IPC分类号： G01N27/407 ,  B21D39/03

CPC分类号： G01N27/4077 ,  G01N27/4062 ,  Y10T29/49826

摘要： An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.

摘要翻译： 提供了一种改进的气体传感器结构。 该气体传感器包括一个中空的壳体，其中设有一个气体检测元件，一个保护盖安装在外壳的一端，一个金属盖安装在外壳的另一端，一个绝缘体，其中引线的端部与 设置气体感测元件。 绝缘体使用垫圈弹性地保持在壳体的凸缘上。 保护盖在其端部焊接到壳体的端部的整个周边。

公开(公告)号：US06898961B2

公开(公告)日：2005-05-31

申请号：US10155112

申请日：2002-05-28

申请人： Hirokazu Yamada ,  Takashi Kojima ,  Isao Watanabe

发明人： Hirokazu Yamada ,  Takashi Kojima ,  Isao Watanabe

IPC分类号： G01N27/407 ,  G01N7/00

CPC分类号： G01N27/4077 ,  G01N27/4062 ,  Y10T29/49826

摘要： An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.

公开(公告)号：US07569792B2

公开(公告)日：2009-08-04

申请号：US11028330

申请日：2005-01-04

申请人： Hirokazu Yamada ,  Takashi Kojima ,  Isao Watanabe

发明人： Hirokazu Yamada ,  Takashi Kojima ,  Isao Watanabe

IPC分类号： B23K26/00 ,  H05B3/42 ,  G01L23/22

CPC分类号： G01N27/4077 ,  G01N27/4062 ,  Y10T29/49826

摘要： An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.

公开(公告)号：US06319378B1

公开(公告)日：2001-11-20

申请号：US09372647

申请日：1999-08-12

申请人： Takashi Kojima ,  Isao Watanabe ,  Hirokazu Yamada

发明人： Takashi Kojima ,  Isao Watanabe ,  Hirokazu Yamada

IPC分类号： G01N27407

CPC分类号： G01N27/407

摘要： An improved structure of a gas sensor is provided which includes a hollow housing and a sensing element. The sensing element has a flange and is disposed within the housing in engagement of the flange with an inner wall of the housing. An insulating powder is packed in a chamber defined by the inner wall of the housing, the flange and an outer wall of the sensing element to provide an air-tight seal between an air chamber to which one end of the sensing element is exposed and a gas chamber to which the other end of the sensing element is exposed. The air-tight seal has the structure designed to minimize an air leakage and breakage of the sensing element when installed in the housing.

摘要翻译： 提供了一种气体传感器的改进结构，其包括中空壳体和感测元件。 感测元件具有凸缘并且设置在壳体内，凸缘与壳体的内壁接合。 绝缘粉末被包装在由壳体的内壁，凸缘和感测元件的外壁限定的室中，以在感测元件的一端暴露于的空气室与一个空气密封件之间提供气密密封， 感测元件的另一端露出的气室。 气密密封具有设计成在安装在壳体中时最小化感测元件的空气泄漏和破裂的结构。

公开(公告)号：US06214186B1

公开(公告)日：2001-04-10

申请号：US09350676

申请日：1999-07-12

申请人： Isao Watanabe ,  Takashi Kojima ,  Hirokazu Yamada

发明人： Isao Watanabe ,  Takashi Kojima ,  Hirokazu Yamada

IPC分类号： G01N27407

CPC分类号： G01N27/4077

摘要： An improved structure of a gas sensor is provided. The gas sensor includes a gas sensitive element, a holder retaining therein the gas sensitive element, and a protective cover installed on the holder. The protective cover has a flange which is retained in a groove formed in the holder by crimping an outer extension formed on the holder adjacent the groove. The geometries of the groove in the holder and the flange of the protective cover are so determined as to provide for ease of installation of the protective cover on the holder, firm engagement of the protective cover with the groove of the holder, and ease of machining of the groove of the holder.

摘要翻译： 提供了一种改进的气体传感器结构。 气体传感器包括气体敏感元件，保持气体敏感元件的保持器和安装在保持器上的保护盖。 保护盖具有通过压接形成在与槽相邻的保持器上的外延伸部而保持在形成在保持器中的槽中的凸缘。 保持架中的凹槽的几何形状和保护盖的凸缘被确定为提供易于将保护盖安装在保持器上，保护盖与保持器的凹槽的牢固接合以及加工容易 的支架槽。

公开(公告)号：US06222372B1

公开(公告)日：2001-04-24

申请号：US09196693

申请日：1998-11-20

申请人： Kenji Fukaya ,  Masanobu Yamauchi ,  Isao Watanabe ,  Hirokazu Yamada ,  Takashi Kojima

发明人： Kenji Fukaya ,  Masanobu Yamauchi ,  Isao Watanabe ,  Hirokazu Yamada ,  Takashi Kojima

IPC分类号： G01N2762

CPC分类号： G01N27/407

摘要： A gas sensor measuring a given component content in a gas is provided which has an outer and an inner metallic cover, a sensing unit, and an insulator. The sensing unit consists of a measuring electrode to be exposed to the gas to be measured and a reference electrode to be exposed to a reference gas in a reference gas chamber. The measuring electrode and the reference electrode are disposed adjacent each other through a solid electrolyte body. The inner metallic cover is installed on an end of a sensor housing. The outer metallic cover is installed on the periphery of the inner metallic cover. The insulator is mounted within the inner metallic cover and has formed therein holes through which sensor signal pickup leads pass. The insulator has an outer wall different in geometry from an inner wall of the inner metallic cover to define a portion of a reference gas passage therebetween which leads to the reference gas chamber.

摘要翻译： 提供了测量气体中给定组分含量的气体传感器，其具有外金属外壳和内金属盖，感测单元和绝缘体。 感测单元由暴露于被测气体的测量电极和参考气体暴露于参考气体中的参考气体组成。 测量电极和参考电极通过固体电解质体彼此相邻设置。 内金属盖安装在传感器外壳的一端。 外金属盖安装在内金属盖的周边。 绝缘体安装在内金属盖内，并且在其中形成有传感器信号拾取引线通过的孔。 绝缘体具有几何形状与内金属盖的内壁不同的外壁，以在其间限定通向参考气室的参考气体通道的一部分。

公开(公告)号：US6036829A

公开(公告)日：2000-03-14

申请号：US20334

申请日：1998-02-09

申请人： Hirokazu Yamada ,  Takashi Kojima ,  Makoto Hori ,  Masahiro Hamaya ,  Minoru Ota

发明人： Hirokazu Yamada ,  Takashi Kojima ,  Makoto Hori ,  Masahiro Hamaya ,  Minoru Ota

IPC分类号： G01N27/407

CPC分类号： G01N27/4071

摘要： An oxygen sensor 3 having a heater 2 capable of providing an improved temperature increasing characteristic, while maintaining an increased amount of introduced air and a high production efficiency. The sensor 3 includes a sensor element 1 having an air chamber 100 in which a heater 2 is arranged. The heater 2 has a rectangular cross sectional shape. In order to produce the heater 2, onto a green ceramic sheet, a heater of a predetermined pattern including a plurality of heater sections is printed. Then, to the printed sheet, different ceramic green sheets are applied so as to obtain a laminated body. The laminated body is subjected to a cutting so as to produce an intermediate body in which a heater section is included. The intermediate body is subjected to a firing to obtain a completed heater.

摘要翻译： 具有能够提供改善的升温特性的加热器2，同时保持增加的引入空气量和高生产效率的氧传感器3。 传感器3包​​括传感器元件1，其具有布置有加热器2的空气室100。 加热器2具有矩形横截面形状。 为了将加热器2制造到生坯陶瓷片上，印刷包括多个加热器部分的预定图案的加热器。 然后，向印刷片施加不同的陶瓷生片以获得层压体。 对层叠体进行切割以制造其中包括加热器部分的中间体。 对中间体进行烧制以获得完成的加热器。

公开(公告)号：US5759365A

公开(公告)日：1998-06-02

申请号：US609421

申请日：1996-03-01

申请人： Hirokazu Yamada ,  Takashi Kojima

发明人： Hirokazu Yamada ,  Takashi Kojima

IPC分类号： G01N27/409 ,  G01N27/407

CPC分类号： G01N27/407

摘要： According to the present invention, an oxygen concentration sensor for detecting an oxygen concentration includes a sensor element having an atmospheric chamber therein, a heater inserted in the atmospheric chamber, and a holder for holding the heater in the atmospheric chamber. The holder includes a cylindrical portion for covering an outer periphery of the heater, and a plurality of cantilever elastic pieces provided at a lower portion of the cylindrical portion. The elastic pieces includes a heater supporting portion elastically contacting with the periphery of the heater and a fixing portion elastically contacting with an inner surface of the sensor element. In this way, it is possible to assemble a heater into a sensor element easily without causing damage to the heater.

摘要翻译： 根据本发明，用于检测氧浓度的氧浓度传感器包括其中具有大气室的传感器元件，插入大气室中的加热器和用于将加热器保持在大气室中的保持器。 保持器包括用于覆盖加热器的外周的圆柱形部分和设置在圆柱形部分的下部的多个悬臂弹性片。 弹性件包括与加热器周边弹性接触的加热器支撑部分和与传感器元件的内表面弹性接触的固定部分。 以这种方式，可以容易地将加热器组装到传感器元件中而不会对加热器造成损害。

公开(公告)号：US06913678B2

公开(公告)日：2005-07-05

申请号：US10291835

申请日：2002-11-12

申请人： Hirokazu Yamada ,  Takashi Kojima

发明人： Hirokazu Yamada ,  Takashi Kojima

IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N33/00

CPC分类号： G01N27/4077

摘要： An insulator, airtightly supported via an annular metallic packing on a cylindrical housing, has a small-diameter portion and a large-diameter portion. A tapered surface extends in a radially outer direction from a small-diameter cylindrical surface to a large-diameter cylindrical surface. A receiving surface, formed on an inside wall of the housing, supports the tapered surface via the metallic packing. The tapered surface is brought into line contact with the metallic packing at its outer or inner circumferential portion.

摘要翻译： 通过圆柱形壳体上的环形金属填料气密地支撑的绝缘体具有小直径部分和大直径部分。 锥形表面从径向外径方向从小直径圆柱形表面延伸到大直径圆柱形表面。 形成在壳体的内壁上的接收表面经由金属填料支撑锥形表面。 锥形表面在其外圆周部分或内圆周部分与金属填料线接触。