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：US09431731B2

公开(公告)日：2016-08-30

申请号：US14246336

申请日：2014-04-07

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Takehiro Oba ,  Yuichi Yamada ,  Shingo Ito ,  Takeshi Nanbu ,  Hironari Furuta ,  Makoto Kume

IPC: H01R11/18 ,  H01R11/01 ,  G01N27/406 ,  H01R13/24

CPC classification number: H01R11/18 ,  G01N27/4062 ,  H01R11/01 ,  H01R13/2442

Abstract: A sensor includes a detection element; a plurality of terminal members, each of the terminal members including an elongated frame body portion extending along the axial direction, an element contact portion in elastic contact with an electrode terminal, and a folded portion connecting the frame body portion and the element contact portion; and a separator. The element contact portion of each of the terminal members has a turning portion which turns inward with respect to the width direction between the folded portion and a contact portion in contact with an electrode terminal. In those two of the terminal members which are adjacent to each other along the width direction, the distance along the width direction between the contact portions is smaller than the distance along the width direction between the frame body portions.

Abstract translation: 传感器包括检测元件; 多个端子构件，每个端子构件包括沿轴向延伸的细长框架体部分，与电极端子弹性接触的元件接触部分和连接框架本体部分和元件接触部分的折叠部分; 和分隔符。 每个端子构件的元件接触部分具有相对于折叠部分和与电极端子接触的接触部分之间的宽度方向向内倾斜的转动部分。 在沿着宽度方向彼此相邻的那些端子构件中，接触部之间沿着宽度方向的距离小于框体部之间沿着宽度方向的距离。

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：US11609215B2

公开(公告)日：2023-03-21

申请号：US17075110

申请日：2020-10-20

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Daisuke Matsuyama ,  Masahiro Asai ,  Masashi Nomura ,  Yuto Inose ,  Takehiro Oba

IPC: G01N33/00

Abstract: A gas sensor includes a gas sensor element for detecting the concentration of a specific gas in a gas under measurement, a tubular housing having an opening, a sealing member closing the opening, and a heat dissipating member having a rear end located at the same position or forward of the rear end of the housing. The heat dissipating member reduces heat transferred from the forward end side of the gas sensor to the sealing member and includes a connection portion connected to the housing, and a main portion extending rearward from the connection portion such that a gap is formed between the main portion and the housing. The main portion has heat dissipating openings for establishing communication between the gap and a space on the outer circumferential side of the heat dissipating member. The heat dissipating openings are formed on the rear end side of the main portion.

公开(公告)号：US20210132016A1

公开(公告)日：2021-05-06

申请号：US17075110

申请日：2020-10-20

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Daisuke MATSUYAMA ,  Masahiro ASAI ,  Masashi NOMURA ,  Yuto INOSE ,  Takehiro Oba

IPC: G01N33/00

Abstract: A gas sensor includes a gas sensor element for detecting the concentration of a specific gas in a gas under measurement, a tubular housing having an opening, a sealing member closing the opening, and a heat dissipating member having a rear end located at the same position or forward of the rear end of the housing. The heat dissipating member reduces heat transferred from the forward end side of the gas sensor to the sealing member and includes a connection portion connected to the housing, and a main portion extending rearward from the connection portion such that a gap is formed between the main portion and the housing. The main portion has heat dissipating openings for establishing communication between the gap and a space on the outer circumferential side of the heat dissipating member. The heat dissipating openings are formed on the rear end side of the main portion.

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：US10371680B2

公开(公告)日：2019-08-06

申请号：US15414808

申请日：2017-01-25

Applicant: NGK Spark Plug Co., LTD.

Inventor： Makoto Kume ,  Shingo Ito ,  Takehiro Oba ,  Shinya Miyamoto ,  Suguru Kyoumoto

IPC: G01N33/00 ,  G01N27/407

Abstract: A gas sensor is provided with a metal shell protecting member formed of a material superior in heat resistance to a metal shell, whereby a high-temperature measurement target (exhaust gas) is prevented from being in direct contact with a region, of a protector internal region of the metal shell, on the front side relative to a protector opposing surface. That is, in the gas sensor, it is possible to suppress corrosion, due to high temperature, of a region, of the protector internal region of the metal shell, on the front side relative to the protector opposing surface (an inner surface and a front end surface of a protector fixing portion), while the metal shell is formed of a material (SUS430) that can be subjected to working (crimping or the like) accompanied with deformation. Therefore, heat resistance of the entire sensor can be improved.

公开(公告)号：US09970910B2

公开(公告)日：2018-05-15

申请号：US15009081

申请日：2016-01-28

Applicant: NGK Spark Plug Co., LTD.

Inventor： Kunihiko Yonezu ,  Takehiro Oba ,  Hisaharu Nishio ,  Ginjiro Ito ,  Yuichi Yamada

IPC: G01N33/00

CPC classification number: G01N33/0009

Abstract: A gas sensor includes a gas sensor element that extends in an axial direction and that includes a detector, which detects a specific gas in a mixed gas; a metal shell that surrounds a periphery of the gas sensor element to hold the gas sensor element; a base that is disposed on a rear side of the metal shell and that covers a rear end portion of the gas sensor element, the base being made of a polymer material; and a metal tube that connects the metal shell and the base to each other and that includes a rear portion and a front portion, the rear portion being integrated with the base, the front portion forming an exposed portion that is exposed from the base. A part of the exposed portion of the tube is connected to the metal shell, and the base is disposed apart from the metal shell.

公开(公告)号：US12247944B2

公开(公告)日：2025-03-11

申请号：US17769575

申请日：2020-09-28

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Sunchao Liu ,  Kazuhiro Kouzaki ,  Takehiro Oba ,  Motohiko Nakamura ,  Kenji Masuda

IPC: G01N27/407 ,  G01N33/00

Abstract: A gas sensor (1) including a sensor element (10); a metallic shell (138); a tubular outer surface member (190) attached directly or indirectly to the metallic shell, constitutes an outer surface of the gas sensor, and extends toward a rear end side in relation to the metallic shell; and a tubular protection member (210, 220) which is detachably fixed to a fixation region C1, C2 of an outer circumference of the outer surface member. The protection member includes a first arc portion (212), a second arc portion (222), and a fixation portion (214,224) brought into contact with and is fixed to the fixation region. When the protection member fixed to the outer circumference of the outer surface member by fixing the fixation portion to the fixation region is viewed in the axial O direction, the first arc portion and the second arc portion cover in total at least 90% of the entire circumference of the outer surface of the outer surface member.

公开(公告)号：US11768168B2

公开(公告)日：2023-09-26

申请号：US16986483

申请日：2020-08-06

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Sunchao Liu ,  Takehiro Oba

IPC: G01N27/406 ,  G01N27/407 ,  G01M15/10

CPC classification number: G01N27/4062 ,  G01M15/104 ,  G01N27/407

Abstract: A sensor (1) comprising: a sensor element (10); metal terminals; and a front side separator (90) and a rear side separator (95) to hold the metal terminals, the metal terminals each include a front side metal terminal (30) and a rear side metal terminal (40) respectively held by the front side separator and the rear side separator, a first connection portion (33) is provided on a rear side of the front side metal terminal, a second connection portion (43) is provided on a front side of the rear side metal terminal, and an axis P2 of one of the first and the second connection portion, in all of the plurality of metal terminals, is displaced toward a radially outer side of the sensor element relative to an axis P1 of a counterpart thereof, and the first connection portion and the second connection portion are in contact with each other.