公开(公告)号：US10598628B2

公开(公告)日：2020-03-24

申请号：US15637770

申请日：2017-06-29

Applicant: NGK Spark Plug Co., LTD.

Inventor： Shogo Nagata ,  Takehiro Oba ,  Shunya Mihara ,  Kenji Masuda

IPC: G01N27/407 ,  G01N27/30 ,  C01B21/20 ,  G01N27/22

Abstract: A gas sensor includes a sensor element having electrode pads, metal terminal members connected to the respective electrode pads, separators, and lead wires connected to the rear ends of the metal terminal members. Each metal terminal member has a forward locking portion and a rear locking portion provided at the forward and rear ends, respectively. The separator is composed of a forward separator and a rear separator connected to each other. The forward separator includes a first locking portion having a rearward-facing surface, and the rear separator includes a second locking portion having a forward-facing surface. The metal terminal member is held between the forward separator and the rear separator in a state in which the forward locking portion is in locking engagement with the rearward-facing surface and the rear locking portion is in locking engagement with the forward-facing surface.

公开(公告)号：US10203301B2

公开(公告)日：2019-02-12

申请号：US15618340

申请日：2017-06-09

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunya Mihara ,  Takehiro Oba ,  Shogo Nagata

IPC: G01N27/40 ,  G01N27/416 ,  G01N33/00 ,  G01N27/407

Abstract: A gas sensor includes a sensor element having an electrode pad and a metal terminal member including a forward metal terminal member connected to the electrode pad, and a rear metal terminal member connected to the forward metal terminal member and a lead wire. The rear metal terminal member includes a forward end portion, a central portion, and a lead-wire connection portion. The forward end portion and the central portion are integrally connected through a first neck portion smaller in sectional area than the forward end portion and the central portion. The central portion and the lead-wire connection portion are integrally connected through a second neck portion smaller in sectional area than the central portion and the lead-wire connection portion. The first neck portion is greater in moment of inertia of area than the second neck portion.

公开(公告)号：US10520463B2

公开(公告)日：2019-12-31

申请号：US15481986

申请日：2017-04-07

Applicant: NGK Spark Plug Co., LTD.

Inventor： Takehiro Oba ,  Shogo Nagata ,  Shunya Mihara

IPC: G01N27/407 ,  G01N27/30 ,  G01N27/409 ,  G01N27/406

Abstract: An insulating separator of a gas sensor is formed to be dividable into a forward separator having a terminal disposition hole, and a rear separator having four terminal disposition holes. The insulating separator has a ventilation path formed between the forward separator and the rear separator. As a result, moisture and the like which enter the insulating separator from a forward side of the forward separator through the terminal disposition hole can be discharged outward of the insulating separator through the ventilation path. As a result, corrosion of metal terminals caused by entry of moisture can be reduced, whereby transmission of a sensor signal and application of current or voltage through the metal terminals can be appropriately implemented.

公开(公告)号：US09482637B2

公开(公告)日：2016-11-01

申请号：US14246530

申请日：2014-04-07

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Takehiro Oba ,  Yuichi Yamada ,  Shingo Ito ,  Shogo Nagata

IPC: G01N27/26 ,  G01N7/00 ,  G01N21/00 ,  G01N27/00 ,  G01N31/00 ,  G01N33/00 ,  G01N27/407

CPC classification number: G01N27/407

Abstract: A sensor including: a detection element; terminal members; and a separator, wherein at least one specific first electrode terminal portion and an other first electrode terminal portion are formed on a first main surface of the detection element, wherein a second electrode terminal portion formed on a second main surface of the detection element is disposed so as to be offset from the specific first electrode terminal portion and to overlap with the other first electrode terminal portion in the axial direction, and in a thickness direction, a distance between the detection element and a specific first frame body portion brought into electrical connection with the specific first electrode terminal portion is larger than a distance between the detection element and the other first frame body portion brought into electrical connection with the other first electrode portion.

Abstract translation: 一种传感器，包括：检测元件; 终端会员 以及分离器，其中在所述检测元件的第一主表面上形成有至少一个特定的第一电极端子部分和另一个第一电极端子部分，其中形成在所述检测元件的第二主表面上的第二电极端子部分被布置 以便偏离特定的第一电极端子部分，并且在轴向上与另一个第一电极端子部分重叠，并且在厚度方向上，检测元件与形成电连接的特定的第一框架体部分之间的距离 特定的第一电极端子部分大于检测元件和与另一个第一电极部分电连接的另一个第一框架体部分之间的距离。

公开(公告)号：USRE49874E1

公开(公告)日：2024-03-19

申请号：US17350702

申请日：2021-06-17

Applicant: NGK Spark Plug Co., LTD.

Inventor： Takehiro Oba ,  Shogo Nagata ,  Shunya Mihara

IPC: G01N27/406 ,  G01N33/00 ,  H01R43/20 ,  G01N27/407 ,  H01R4/48 ,  H01R13/42 ,  H01R33/76

CPC classification number: G01N33/0037 ,  H01R43/20 ,  G01N27/4062 ,  G01N27/4067 ,  G01N27/4077 ,  H01R4/4809 ,  H01R13/42 ,  H01R33/7685 ,  Y02A50/20

Abstract: A gas sensor includes a sensing element having an electrode pad a metal terminal, and a separator that has insertion holes in which the metal terminal is held. The metal terminal includes a main body and an elastic portion that is integrally connected to the main body and is elastically connected to the electrode pad at a predetermined contact point. The main body includes a front-end-side restricting portion and a rear-end-side restricting portion that restrict the movement of the main body by contacting wall surfaces of the insertion hole when the main body moves in a direction intersecting the direction of an axial line. The contact point is located between the front-end-side restricting portion and the rear-end-side restricting portion in the direction of the axial line. The front-end-side restricting portion and the rear-end-side restricting portion are connected to each other so that a flat board portion is interposed therebetween.

公开(公告)号：US10585061B2

公开(公告)日：2020-03-10

申请号：US15642153

申请日：2017-07-05

Applicant: NGK Spark Plug Co., LTD.

Inventor： Takehiro Oba ,  Shogo Nagata ,  Shunya Mihara

IPC: G01N27/406 ,  G01N27/407 ,  H01R4/18 ,  H01R13/26 ,  H01R43/048 ,  H01R43/20 ,  H01R13/703 ,  H01R13/05

Abstract: A gas sensor includes a sensing element that includes an electrode pad, a metal terminal, and a separator. The metal terminal includes a lead-wire-connecting portion, a main body, a protruding piece that protrudes from a front-end side, and an elastic portion connected to an end of the protruding piece and to the electrode pad. An area S1 of a first opposed surface of a primary surface facing an insertion hole of the separator is larger than an area S2 of a second opposed surface of a secondary surface facing the insertion hole, and a part of the second opposed surface contacts an inner circumferential surface of the separator forming the insertion hole, and the first opposed surface is separated from the inner circumferential surface, where surfaces of the main body and the protruding piece that are located opposite the elastic portion are the primary surface and the secondary surface.

公开(公告)号：US10890551B2

公开(公告)日：2021-01-12

申请号：US15642130

申请日：2017-07-05

Applicant: NGK Spark Plug Co., LTD.

Inventor： Takehiro Oba ,  Shogo Nagata ,  Shunya Mihara

IPC: G01N27/406 ,  H01R43/20 ,  H01R13/42 ,  G01N27/407 ,  G01N33/00 ,  H01R4/48 ,  H01R33/76

Abstract: A gas sensor includes a sensing element having an electrode pad a metal terminal, and a separator that has insertion holes in which the metal terminal is held. The metal terminal includes a main body and an elastic portion that is integrally connected to the main body and is elastically connected to the electrode pad at a predetermined contact point. The main body includes a front-end-side restricting portion and a rear-end-side restricting portion that restrict the movement of the main body by contacting wall surfaces of the insertion hole when the main body moves in a direction intersecting the direction of an axial line. The contact point is located between the front-end-side restricting portion and the rear-end-side restricting portion in the direction of the axial line. The front-end-side restricting portion and the rear-end-side restricting portion are connected to each other so that a flat board portion is interposed therebetween.

公开(公告)号：US10761048B2

公开(公告)日：2020-09-01

申请号：US15643090

申请日：2017-07-06

Applicant: NGK Spark Plug Co., LTD.

Inventor： Takehiro Oba ,  Shogo Nagata ,  Shunya Mihara

IPC: G01N27/406 ,  G01N27/407 ,  G01N33/00 ,  H01R11/18 ,  H01R11/28

Abstract: A metal terminal includes a front-side terminal member and a rear-side terminal member. The front-side terminal member includes a female connection portion, and the rear-side terminal member includes a male connection portion. The female connection portion has an insertion port in which the male connection portion is inserted. The insertion port is formed in a shape that prevents the insertion port and the male connection portion from coming into contact with each other when the male connection portion is inserted therein. The female connection portion includes a terminal contact portion which brings the male connection portion and the female connection portion into contact with each other by pressing the male connection portion toward the female connection portion inside the female connection portion.

公开(公告)号：US10031047B2

公开(公告)日：2018-07-24

申请号：US15472520

申请日：2017-03-29

Applicant: NGK Spark Plug Co., LTD.

Inventor： Takehiro Oba ,  Shogo Nagata ,  Shunya Mihara

IPC: G01M15/10

Abstract: A metal terminal of a gas sensor includes a forward terminal member and a rear terminal member. The forward terminal member is made of a material superior in heat resistance to and greater in “0.2% yield strength” than a material of the rear terminal member. The forward terminal member has heat resistance suitable for a portion which comes into contact with a high-temperature detection element and is larger in an elastic deformation region than the rear terminal member, thereby providing good contact with the detection element and thus facilitating maintenance of electrical contact with the detection element. The rear terminal member is unlikely to have springback at a signal-wire connection portion to be connected to a lead wire, thereby facilitating maintenance of electrical connection with the lead wire.